☆ 4.7 Article

Application of H-titanate nanofibers for degradation of Congo Red in an annular slurry photoreactor

CHEMICAL ENGINEERING JOURNAL (2009)

获取全文
添加到收藏夹

期刊

CHEMICAL ENGINEERING JOURNAL
卷 150, 期 1, 页码 49-54

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2008.12.002

关键词

TiO2; Nanofibers; Congo Red; Annular reactor; Photocatalysis; Degradation

类别

Engineering, Environmental Engineering, Chemical

资金

  1. Australian Research Council [LP0562153]
  2. Australian Water Quality Centre
  3. SA Water Corporation, through the Water Environmental Biotechnology Laboratory (WEBL)
  4. Australian Research Council [LP0562153] Funding Source: Australian Research Council

向作者/读者索取更多资源

Protocol

社区支持

Reagent

社区支持

Anatase nanofibers (TiO2-N) were synthesized as photocatalyst for the application in an annular slurry photoreactor (ASP). The unique properties of TiO2-N have facilitated its high reactivity and suitability for water treatment. The influence of operational variables: TiO2-N loading, pH, aeration rate and dye concentration on the photo-degradation kinetics and efficiency to remove a model compound of Congo Red (CR) were investigated. The photo-degradation kinetics of CR followed the Langmuir-Hinshelwood regime at lower pH. The Langmuir adsorption constant. KL-H was determined as 7.695 x 10(2) dm(3) mol(-1). The optimal photo-degradation rate of 3.47 x 10(-2) mol dm(-3) min(-1) was achieved at 60 ppm CR, pH 3, aeration rate of 5 dm(3) min(-1) and TiO2-N loading of 4 g dm(-3). Batch settling tests based on Kynch's theory revealed that the TiO2-N photocatalysts could produce a settling velocity of 8.38 x 10(-4) ms(-1). It Was expected that these novel TiO2-N particles can deliver a true engineering Solution as an industrial process for photocatalytic water treatment. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Chemistry, Multidisciplinary

Plasmonic Silver-Nanoparticle-Catalysed Hydrogen Abstraction from the C(sp(3))-H Bond of the Benzylic C-a atom for Cleavage of Alkyl Aryl Ether Bonds

Pengfei Han, Xin Mao, Yichao Jin, Sarina Sarina, Jianfeng Jia, Eric R. Waclawik, Aijun Du, Steven E. Bottle, Jin-Cai Zhao, Huai-Yong Zhu

Summary: Selective activation of specific C(sp(3))-H bond and cleavage of unreactive ether C-beta-O bond can be achieved by illuminated plasmonic silver metal nanoparticles. This plasmon-driven process enables hydrogen abstraction and precise scission of targeted C-O bond, resulting in the formation of aromatic compounds with unsaturated, substituted groups in excellent yields.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

添加到收藏夹
Review Chemistry, Physical

Piezoresistivity and AC Impedance Spectroscopy of Cement-Based Sensors: Basic Concepts, Interpretation, and Perspective

Amir A. E. Elseady, Ivan Lee, Yan Zhuge, Xing Ma, Christopher W. K. Chow, Nima Gorjian

Summary: This paper reviews the fundamental concepts of piezoresistivity and AC impedance spectroscopy, as well as the comparison of equivalent circuit models of cement-based sensors found in the literature. It introduces concepts such as piezoresistivity theory, factors affecting piezoresistivity measurement, resistance measurement methodology, strain/damage sensing, causes of piezoresistivity, theories of conduction, AC impedance spectroscopy theory, and the equivalent circuit model. The aim of this review is to provide a comprehensive guide for researchers and practitioners interested in exploring and applying different techniques to self-sensing concrete.

MATERIALS (2023)

添加到收藏夹
Article Chemistry, Physical

Enhancing visible-light photocatalytic performance of Au/TiO2 catalysts through light reflection-promoted optical absorption with oriented anatase mesocrystals

Jingling Yang, Shiman He, Hongwei Liu, Esa Jaatinen, Eric Waclawik, Jiamin Quan, Sarina Sarina, Chun He, Senchuan Huang, Huaiyong Zhu, Mingmei Wu

Summary: Researchers utilized a vertically oriented anatase mesocrystal (meso-TiO2) as the support to enhance the light absorption of plasmonic Au NPs, achieving efficient photocatalytic elimination of sulfur-containing volatile organic compounds and hydrogen evolution from water. This research opens up a new paradigm to improve the photocatalytic performance of plasmonic metals by utilizing the light reflection model.

JOURNAL OF MATERIALS CHEMISTRY A (2023)

添加到收藏夹
Article Engineering, Environmental

Using the Flocculation Index to optimise coagulant dosing during drinking water treatment

Mahmoud Khedher, John Awad, Erica Donner, Barbara Drigo, Rolando Fabris, Martin Harris, Kalan Braun, Christopher W. K. Chow

Summary: This study investigated the feasibility of using the Flocculation Index (FI) as a control parameter to optimize turbidity removal. The results indicate that the FI can be used as an alternative parameter for optimizing the coagulation process.

JOURNAL OF WATER PROCESS ENGINEERING (2023)

添加到收藏夹
Article Chemistry, Analytical

Development of a Knowledge Graph for Automatic Job Hazard Analysis: The Schema

Sonali Pandithawatta, Seungjun Ahn, Raufdeen Rameezdeen, Christopher W. K. Chow, Nima Gorjian, Tae Wan Kim

Summary: This research created a new ontology, the Job Hazard Analysis Knowledge Graph (JHAKG), by analyzing actual JHA documents and interviewing JHA domain experts. The JHAKG can answer queries regarding hazards, external factors, level of risks, and appropriate control measures. It provides more complete and comprehensive JHA documents compared to those produced by an individual safety manager.

SENSORS (2023)

添加到收藏夹
Article Green & Sustainable Science & Technology

Real-Time Humidity Monitoring Using Distributed Optical Sensor for Water Asset Condition Assessment

Christopher W. K. Chow, Raufdeen Rameezdeen, George Y. Y. Chen, Haolan Xu, Md Mizanur Rahman, Xing Ma, Zhuge Yan, Nima Gorjian, Jing Gao

Summary: Moisture ingress in concrete reduces durability and life span of water assets. Accurate condition information is difficult to obtain when inspection points are physically inaccessible. Therefore, a reliable and cost-effective real-time monitoring system would be useful, particularly for water utilities.

WATER CONSERVATION SCIENCE AND ENGINEERING (2023)

添加到收藏夹
Article Construction & Building Technology

Mitigation of alkali-silica reaction in blast-furnace slag-based alkaline activated material through incorporation of alum water treatment residue

Weiwei Duan, Yan Zhuge, Christopher W. K. Chow, Alexandra Keegan, Yue Liu, Ildiko Merta

Summary: This study utilized alum water treatment residue (AWTR) as an additional precursor in slag-based AAM to mitigate alkali-silica reaction (ASR) in mortars. The results showed that incorporating 40% AWTR improved compressive strength and reduced ASR-induced expansion. Microscopic observations revealed that ASR products formed in two stages, and incorporating AWTR could slow down silica dissolution and reduce the growth of harmful crystalline ASR products.

CONSTRUCTION AND BUILDING MATERIALS (2023)

添加到收藏夹
Article Engineering, Environmental

Comparison of Dewatering Effects of Chemical Conditioning Method for Thermophilic and Mesophilic Anaerobic Digested Sewages Sludge

Linan Xing, Mingyue Zheng, Christopher W. K. Chow, Xiulan Xin, Ye Li, Xiaohui Zhang, Qiangqiang Cheng

Summary: This study compared the dewatering capacity of two chemical coagulants, high-performance polyaluminum chloride (HPAC) and FeCl3, on mesophilic and thermophilic anaerobic digested sludge. The results showed that for mesophilic anaerobic digestion, the optimal dose of FeCl3 and HPAC to improve dewaterability was 5% g/g total suspended solids (TSS), with HPAC being superior to ferric chloride in removing loosely bound extracellular polymeric substances (LB-EPS) and tightly bound extracellular polymeric substances (TB-EPS). For thermophilic anaerobic sludge, HPAC was more effective than FeCl3 in improving dewaterability, with FeCl3 effectively removing TB-EPS and HPAC having better removal efficiency on soluble extracellular polymeric substances (S-EPS) and LB-EPS. Both coagulants showed potential in degrading EPS during thermophilic anaerobic digestion sludge treatment.

JOURNAL OF ENVIRONMENTAL ENGINEERING (2023)

添加到收藏夹
Article Multidisciplinary Sciences

Photocatalytic conversion of sugars to 5-hydroxymethylfurfural using aluminium(III) and fulvic acid

Tana Tana, Pengfei Han, Aidan J. Brock, Xin Mao, Sarina Sarina, Eric R. Waclawik, Aijun Du, Steven E. Bottle, Huai-Yong Zhu

Summary: 5-hydroxymethylfurfural (HMF) is a valuable platform chemical for sustainable fine-chemical and pharmaceutical industry based on biomass. The complex of fulvic acid with Al3+ ions exhibits solar absorption and photocatalytic activity for glucose conversion to HMF in one-pot reaction, offering prospects for new green photocatalytic systems. This mechanism creates the possibility of synthesizing a range of substances that have not previously been considered.

NATURE COMMUNICATIONS (2023)

添加到收藏夹
Article Chemistry, Physical

Insights into O2 Activation via MnIIIOOH Species on Mn-Rich Biochar

Yanfen Fang, Dengyu Ying, Huibin Niu, Yan Xu, Shaobin Wang, Ran Duan, Huaiyong Zhu, Chaoyuan Deng, Chuncheng Chen, Yingping Huang

Summary: This study enhanced the manganese content of low-temperature manganese-rich biochar (Mn-BC) and clarified the activation mechanism of molecular oxygen (O-2) by Mn-BC. The Mn-III on MnBC-H5 activated O-2 under visible light, leading to effective organic degradation. This study provides a theoretical basis for developing environmentally friendly biochar-based catalysts and studying the environmental effects of biochar.

ACS CATALYSIS (2023)

添加到收藏夹
Article Engineering, Environmental

DOC signal-based alum dose control for drinking water treatment plants

Hiua Daraei, John Awad, Edoardo Bertone, Rodney A. Stewart, Christopher W. K. Chow, Jinming Duan, Jonathan Creamer, John Van Leeuwen

Summary: This paper presents a model for predicting alum dosage for targeted removal of dissolved organic carbon (DOC) from raw surface waters using DOC input data. The model was developed based on jar testing results and showed a 85% removal rate of coagulable DOC fraction at enhanced coagulation. It was further validated through trials at five drinking water treatment plants, showing a high correlation between predicted alum doses and actual alum doses.

JOURNAL OF WATER PROCESS ENGINEERING (2023)

添加到收藏夹
Article Engineering, Environmental

Continuous floc image analyser (C-FIA) for tracking floc particle dynamics during coagulation-flocculation-settling processes

Hiua Daraei, Bayram Akyol, Mahmoud Khedher, Edoardo Bertone, John Awad, Rodney A. Stewart, Christopher W. K. Chow, Jinming Duan, John van Leeuwen

Summary: A continuous floc image analyser (C-FIA) was developed to track the dynamics of floc particle formation, growth and settling during drinking water treatment processes. The C-FIA collected video frames have the potential to provide direct information on floc size and concentration.

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY (2023)

添加到收藏夹
Article Environmental Sciences

Undiscovered Spin Trapping Artifacts in Persulfate Oxidation Processes: Implications for Identification of Hydroxyl or Sulfate Radicals in Water

Lingli Wang, Qingchao Li, Yu Fu, Zhaohui Wang, Huai-yong Zhu, Mika Sillanpaa

Summary: Electron paramagnetic resonance (EPR) coupled with the spin trapping technique is commonly used to identify radicals and investigate reaction mechanisms in advanced oxidation processes (AOPs). However, unexpected spin trapping artifacts in highly oxidizing environments can lead to misinterpretation of AOPs mechanisms. This study reveals previously unrevealed reactions between perox-ydisulfate (PDS) and 5,5-dimethyl-1-pyrroline N-oxide (DMPO) or N-tert-butyl-alpha-phenylnitrone (PBN), and proposes the formation routes of the detectable adducts. The findings emphasize the importance of selecting appropriate spin traps and conducting control tests when studying catalytic oxidation mechanisms under highly oxidizing conditions.

ACS ES&T WATER (2023)

添加到收藏夹
Article Chemistry, Multidisciplinary

Real roles of FeOCl nanosheets in Fenton process

Haohao Chen, Na Wen, Yingping Huang, Qintian Peng, Houle Zhou, Yuqing Zhu, Hailin Tian, Xin Ying Kong, Huaiyong Zhu, Liqun Ye

Summary: This study demonstrates that dissolved iron significantly contributes to the catalytic activity of FeOCl in the Fenton and photo-Fenton processes. Neglecting the acidic environment created by FeOCl leads to underestimation of the importance of homogeneous reactions.

ENVIRONMENTAL SCIENCE-NANO (2023)

添加到收藏夹
Article Green & Sustainable Science & Technology

Understanding the Impact of Spot Market Electricity Price on Wastewater Asset Management Strategy

Phuong Do, Christopher W. K. Chow, Raufdeen Rameezdeen, Nima Gorjian

Summary: Developing advanced pumping control schemes for wastewater pumps can lead to cost savings for utilities by optimizing electricity usage based on varying spot market prices. Analysis shows a strong correlation between electricity demand and spot prices, with extreme high prices occurring on scorching days with high air-conditioner usage.

WATER CONSERVATION SCIENCE AND ENGINEERING (2022)

添加到收藏夹
Article Engineering, Environmental

A metal-phenolic network-assembled nanotrigger evokes lethal ferroptosis via self-supply loop-based cytotoxic reactions

Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu

Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

XAS and DFT investigation of atomically dispersed Cu/Co alloyed Pt local structures under selective hydrogenation of acetylene to ethylene

Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian

Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

A multifunctional emitter with synergistical adjustment of rigidity and flexibility for high-performance data-recording and organic light-emitting devices with hot exciton channel

Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma

Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Cobalt/nickel purification by solvent extraction with ionic liquids in millifluidic reactors: From single-channel to numbered-up configuration with solvent recycle

Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven

Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Environment-triggered nanoagent with programmed gas release performance for accelerating diabetic infected wound healing

Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai

Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Synergistic dopa-reinforced fluid hydrosol as highly efficient coal dust suppressant

Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang

Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

First principle-based rate equation theory for the carbonation kinetics of CaO with CO2 in calcium looping

Jinzhi Cai, Zhenshan Li

Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Significant enhancement of high-temperature capacitive energy storage in dielectric films through surface self-assembly of BNNS coatings

Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao

Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Medium entropy metal oxide induced *OH species targeted transfer strategy for efficient polyethylene terephthalate plastic recycling

Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu

Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

A novel environmental friendly and sustainable process for textile dyeing with sulphur dyes for cleaner production

Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag

Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Highly efficient and sustainable cationic polyvinyl chloride nanofibrous membranes for removal of E. coli and Cr (VI): Filtration and adsorption

Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao

Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Concerted proton-coupled electron transfer promotes NiCoP nanowire arrays for efficient overall water splitting at industrial-level current density

Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu

Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Self-limiting growth of thin dense LTA membranes boosts H2 gas separation performance

Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo

Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Prediction of phosphate adsorption amount, capacity and kinetics via machine learning: A generally physical-based process and proposed strategy of using descriptive text messages to enrich datasets

Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong

Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
Article Engineering, Environmental

Absorption of hydrophobic volatile organic compounds in renewable vegetable oils and esterified fatty acids: Determination of gas-liquid partitioning coefficients as a function of temperature

Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve

Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.

CHEMICAL ENGINEERING JOURNAL (2024)

添加到收藏夹
研讨会 海报 问题 讨论圈 基金 期刊 论文 科研社交 资讯集成 审稿人 关于我们 常见问题 移动App 隐私条款 使用条款
© Peeref 2019-2024. All rights reserved.