☆ 4.7 Article

Atomically Pt implanted nanoporous TiO2 film for photocatalytic degradation of trace organic pollutants in water

CHEMICAL ENGINEERING JOURNAL (2020)

获取全文
添加到收藏夹

期刊

CHEMICAL ENGINEERING JOURNAL
卷 385, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.123832

关键词

Atomically dispersed Pt; Nanoporous TiO2 films; {001} facets; Photocatalysis; Trace organic pollutants

类别

Engineering, Environmental Engineering, Chemical

资金

  1. Science Fund for Creative Research Groups [21521064]
  2. National Natural Science Foundation of China [51772280]
  3. Suzhou-Tsinghua innovation guiding program [2016SZ0104]
  4. Fundamental Research Funds for the Central Universities [2652017376]

向作者/读者索取更多资源

Protocol

社区支持

Reagent

社区支持

Trace organic pollutants in water can potentially and persistently impart destructive effects on human body and it is difficult to remove them by conventional treatment process owing to their low concentration. Herein, considering the importance and difficulty, a novel atomically N implanted nanoporous TiO2 film was prepared using a facile immersion and reduction method and confirmed by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), field-emission scanning electron microscope (FESEM), aberration-corrected high-angle annual dark-filed scanning transmission electron microscopy (HAADF-STEM), high resolution transmission electron microscopy (HRTEM), X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). The platinum single-atom photocatalyst exhibited considerable performance and good stability for vacuum ultraviolet (VUV) and ultraviolet (UV) photocatalytic degradation of ethenzamide, one of the typical trace organic pollutants in water, and the removal rate of ethenzamide reached 94.52% and 100% under VUV irradiation when residence time was only 0.5 min and its initial concentrations were 500 ppb and 100 ppb, respectively. The corresponding photocatalytic degradation ratios were 2.19 and 3.98 times those by pristine nanoporous TiO2 film, respectively and energy consumption was only 0.46 kWh/m(3), which was about 28% that by pristine nanoporous TiO2 film. 84.44% of ethenzamide was degraded under UV irradiation when the initial ethenzamide concentration was 500 ppb and residence time was 24 min. Mass transfer resistance coming from low concentration was effectively overcome owing to eddy diffusion accelerated by the nanopores on the surface of TiO2 film and molecular diffusion of trace pollutants promoted by N single atoms. The development of the platinum single-atom photocatalyst has great significance for highly efficient removal of trace organic pollutants in water.

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 Engineering, Environmental

The Effect of Heat Treatment in Different Atmospheres on Tungsten-doped MnO2for Ozone Decomposition

Yajie Yang, Dan Shen, Pengyi Zhang

Summary: The effects of heat treatment in different atmospheres on a tungsten-doped MnO(2) catalyst were investigated. It was found that heating in air at 400 degrees C or in helium at 300 degrees C significantly improved the activity for ozone decomposition in humid conditions, while heating in a hydrogen atmosphere did not change its humid-resistant activity.

OZONE-SCIENCE & ENGINEERING (2021)

添加到收藏夹
Article Nanoscience & Nanotechnology

Photoinduced Simultaneous Thermal and Photocatalytic Activities of MnO2 Revealed by Femtosecond Transient Absorption Spectroscopy

Huiyu Zhang, Shaopeng Rong, Pengyi Zhang

Summary: The study utilized femtosecond transient absorption spectroscopy to investigate the decay of photogenerated holes in MnO2 with different Mn vacancies. It was found that a majority of photogenerated holes recombined within a very short time, enhancing the catalytic activity of MnO2. Additionally, introducing an appropriate amount of Mn vacancies extended the lifetime of photogenerated carriers and confirmed the importance of the photocatalytic pathway in degrading volatile organic compounds.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹
Article Nanoscience & Nanotechnology

Atomically Dispersed Y or La on Birnessite-Type MnO2 for the Catalytic Decomposition of Low-Concentration Toluene at Room Temperature

Huiyu Zhang, Xianming Zheng, Tongzhou Xu, Pengyi Zhang

Summary: This study demonstrated the synthesis of a catalyst by doping rare-earth elements into MnO2 nanosheets for the room-temperature catalytic decomposition of low-concentration VOCs, achieving efficient removal and regeneration. The research sheds light on the development of low-cost and high-activity catalysts for VOC oxidation at room temperature.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹
Article Nanoscience & Nanotechnology

Metal-Organic Gel Derived N-Doped Granular Carbon: Remarkable Toluene Uptake and Rapid Regeneration

Xianming Zheng, Zhang Wu, Jie Yang, Sadia Rehman, Ranran Cao, Pengyi Zhang

Summary: N-doped granular carbons synthesized by direct carbonization of metal-organic gel exhibit high toluene adsorption capacity and rapid regeneration, making them crucial for capturing VOCs from high humidity air. These materials show significant improvement in toluene adsorption compared to traditional carbon materials and exhibit excellent hydrophobicity, with a critical role of effective diffusion length in regeneration rate.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹
Article Engineering, Environmental

A facile method to achieve dopamine polymerization in MOFs pore structure for efficient and selective removal of trace lead (II) ions from drinking water

Yu Zhang, Hong Zheng, Pengyi Zhang, Xianming Zheng, Qi Zuo

Summary: A facile method was reported to achieve the slow polymerization of dopamine in the cages of MIL-100 (Fe) followed by the hydrolysis of the urea for efficiently and selectively removing trace heavy metal ions, offering a promising approach for the preparation of adsorption materials for efficient and selective removal of heavy metal ions from drinking water.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹
Article Engineering, Environmental

Macroporous MnO2-based aerogel crosslinked with cellulose nanofibers for efficient ozone removal under humid condition

Ranran Cao, Lianxin Li, Pengyi Zhang

Summary: A MnO2-based hybrid aerogel with good moisture resistance was synthesized using cellulose nanofibers as scaffolds, enhancing the exposure of active sites and alleviating catalyst deactivation. The interconnected macroporous structure facilitates rapid diffusion of ozone molecules, contributing to high and stable ozone conversion.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹
Article Engineering, Environmental

Facile coating of MnO2 nanoparticles onto polymer fibers via friction-heating adhesion for efficient formaldehyde removal

Yongshuai Qu, Xianming Zheng, Keke Ma, Weiwei He, Shan Wang, Pengyi Zhang

Summary: By utilizing friction heat and mechanical action, MnO2 was efficiently loaded onto the surface of PET fibers to form MnO2@PET composites, which exhibited superior HCHO removal rate and conversion to CO2, while also being durable and easily regenerated.

CHEMICAL ENGINEERING JOURNAL (2022)

添加到收藏夹
Article Chemistry, Multidisciplinary

Functionalized Activated Carbon Fibers by Hydrogen Peroxide and Polydopamine for Efficient Trace Lead Removal from Drinking Water

Qi Zuo, Hong Zheng, Pengyi Zhang, Yu Zhang

Summary: The low-cost purification material polydopamine/activated carbon fibers (PDA/H-ACF) was successfully prepared for efficient and selective trace heavy metals removal from drinking water. The optimized sample showed enhanced adsorption performance for trace lead, meeting the relevant standard requirement, and demonstrated superior adsorption capabilities in various conditions, indicating promising application prospects.

LANGMUIR (2022)

添加到收藏夹
Article Chemistry, Physical

Ultrathin δ-MnO2 nanoribbons for highly efficient removal of a human-related low threshold odorant- acetic acid

Tongzhou Xu, Pengyi Zhang, Huiyu Zhang

Summary: Efficient removal of human-emitted gaseous pollutants in indoor air can reduce energy consumption. This study reported a catalytic method for the room and low-temperature removal of human-emitted acetic acid. Ultrathin delta-MnO2 nanoribbons were synthesized and could transform acetic acid into CO2 even at room temperature.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

添加到收藏夹
Article Engineering, Environmental

Preparation of activated carbon fibers rich in S/N/O adsorption sites for selective and efficient trace Pb(II) removal from drinking water

Qi Zuo, Hong Zheng, Pengyi Zhang, Yu Zhang, Baichao Zhang

Summary: In this study, we report a novel activated carbon fiber with multiple active sites, which can selectively and efficiently remove trace heavy metals from drinking water. The activated carbon fiber shows excellent application prospects in water purification.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2022)

添加到收藏夹
Article Engineering, Environmental

Thiol/nitrogen functionalized Fe3O4@ZIF-8-DMTD by one-pot post coordination modulation for efficient and rapid removal of trace heavy metals from drinking water

Yu Zhang, Hong Zheng, Pengyi Zhang, Qi Zuo, Baichao Zhang, Xueying Ren

Summary: Fe3O4@ZIF-8-DMTD adsorbent prepared using a novel method showed effective adsorption of trace heavy metals from drinking water. The adsorbent's negative surface charges and abundant thiol/nitrogen sites greatly improved the adsorption rate and capacity. It also exhibited high stability and adsorption performance in a wide pH and concentration range. Additionally, the adsorbent could be easily recovered and regenerated, showing great potential for purification of trace heavy metals in drinking water.

JOURNAL OF WATER PROCESS ENGINEERING (2022)

添加到收藏夹
Article Construction & Building Technology

Room-temperature catalytic removal of indoor trace hexanal by weakly crystallized MnO2 ultrafine nanowires

Tingxia Hu, Shanhong Sui, Jiale Li, Pengyi Zhang

Summary: Aldehydes, apart from formaldehyde, are commonly found in indoor environments and pose significant threats to human health. However, there have been limited efforts to catalytically decompose them at room temperature. In this study, hydrothermally synthesized weakly crystallized ultrafine MnO2 nanowires were used to decompose hexanal, a frequently detected indoor odorant. The nanowires formed a three-dimensional porous structure, exposing active sites. With its high specific surface area, abundant oxygen vacancies, and ability to generate superoxide radicals at room temperature, the MnO2 nanowires achieved fast and complete oxidation of hexanal at significantly lower temperatures compared to catalysts reported in previous literatures. Moreover, the nanowires exhibited excellent room-temperature catalytic activity for the removal of hexanal at ppb levels. This work demonstrates the feasibility of catalytically removing aldehydes other than formaldehyde at room temperature.

BUILDING AND ENVIRONMENT (2022)

添加到收藏夹
Article Engineering, Environmental

Cost-effective instant air disinfection for building ventilation system by a combination of UV and micro-static electricity

Yankai Xie, Xiaojing Zhu, Pengyi Zhang, Shan Wang, Jie Yang, Jinge Li

Summary: Air disinfection in HVAC systems is crucial due to the increased threats of pathogenic bioaerosol. UV irradiation (UV254/ UV185+254) combined with micro-static electricity was studied to achieve efficient disinfection. The combination process overcame adverse factors and achieved efficient disinfection within a short time. It showed advantages in disinfection stability, pressure drop, energy consumption, and equipment costs.

CHEMICAL ENGINEERING JOURNAL (2023)

添加到收藏夹
Article Engineering, Environmental

Green synthesis of a hydrophobic metal-organic gel for the capture of trace odorous hexanal from humid air

Sadia Rehman, Xianming Zheng, Pengyi Zhang

Summary: In this study, a granular zinc-based metalorganic gel, ZIF-412(gel), was synthesized and found to exhibit excellent adsorption performance for capturing trace volatile organic compounds. Compared to commercial activated carbon and other MOFs, ZIF-412(gel) showed higher adsorption capacity and could be regenerated at a low temperature without significant loss in capacity.

JOURNAL OF HAZARDOUS MATERIALS (2023)

添加到收藏夹
Article Engineering, Environmental

Room temperature synthesis of monolithic MIL-100(Fe) in aqueous solution for energy-efficient removal and recovery of aromatic volatile organic compounds

Xianming Zheng, Sadia Rehman, Pengyi Zhang

Summary: This study reports a green method for the room temperature synthesis of a stable Fe-based MOF monolith using water as the solvent. The optimized monolith exhibits high porosity and mechanical strength, and shows excellent adsorption performance for aromatic VOCs. It can also be rapidly regenerated at lower temperature.

JOURNAL OF HAZARDOUS MATERIALS (2023)

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.