Article
Chemistry, Physical
Jan Bogacki, Piotr Marcinowski, Dominika Bury, Monika Krupa, Dominika Sciezynska, Prasanth Prabhu
Summary: The study demonstrates that the H2O2/Fe3O4/Fe2O3/Fe-0 and UV/H2O2/Fe3O4/Fe2O3/Fe-0 processes are effective methods for wastewater treatment, with the UV process proving to be more effective. Chromatographic analysis can be used to detect and identify pollutants in wastewater.
Review
Engineering, Chemical
Motasem Y. D. Alazaiza, Ahmed Albahnasawi, Nadim K. Copty, Mohammed J. K. Bashir, Dia Eddin Nassani, Tahra Al Maskari, Salem S. Abu Amr, Mohammed Shadi S. Abujazar
Summary: This paper provides a comprehensive review of the synthesis, interaction mechanisms, reactivity factors, recent applications, and environmental concerns of nanoscale zero-valent iron (nZVI) for heavy metals removal. Modified nZVI, BC@nZVI, and S-nZVI have shown higher removal efficiency and more stable performance compared to nZVI alone. The removal process involves adsorption, oxidation/reduction, and precipitation, and is influenced by pH and organic matter. Further research is needed to improve nZVI recovery techniques, evaluate the effects of modified nZVI on the environment, and scale up nZVI applications.
DESALINATION AND WATER TREATMENT
(2022)
Article
Engineering, Environmental
Jeyran Mrihosseininia, Samad Sabbaghi, Naghmeh Sadat Mirbagheri, M. M. Zerafat
Summary: In this study, a copper slag supported nanoscale zero-valent iron (nZVI/copper slag) adsorbent was used to effectively reduce the concentration of arsenite in water. Optimization experiments showed that the adsorbent could remove a significant amount of arsenite within a short period of time. The adsorption process followed the Langmuir model and pseudo-second order kinetics. By using pure copper slag as a substrate, the leaching of iron from the adsorbent surface was significantly reduced. Additionally, the magnetic properties and weight of the adsorbent allowed for easy separation from the aqueous media.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Xingdong Shi, Wei Wei, Lan Wu, Bing-Jie Ni
Summary: This review comprehensively summarizes the mechanisms of ZVI for enhancing nutrients removal in biological wastewater treatment, discusses the role of ZVI in improving excess sludge reduction for methane production, and analyzes the feasibility of recovering phosphorus from anaerobic sludge digestion system through using ZVI. Additionally, knowledge gaps regarding the application of ZVI in sludge or wastewater treatment are identified to facilitate further development of ZVI-based biological technology.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Ye Li, Yangyang Ding, Hongbin Wei, Shaolin Li
Summary: The dense microscale zero-valent iron (mZVI) particles can face hydrodynamic problems in wastewater treatment unit operations, but can be improved by modifying with inorganic floc. This modification method enhances the mixing, settleability, and fluidity of mZVI in concentrated form, making it more adaptable to large-scale wastewater treatment applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Shuangli Li, Shiqi Li, Nuan Wen, Dong Wei, Yongfang Zhang
Summary: The bifunctionalized magnetic mesoporous silica material, NZVI-SH-HMS, successfully synthesized with thiol and nanometer zero-valent iron was effective in removing lead and cadmium ions from aqueous solution. The material demonstrated good porous properties, high adsorption capacity, and excellent adsorption performance in different simulated wastewater, indicating promising capabilities for heavy metal ion removal in actual water environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
D. P. Ordinartsev, N. Pechishcheva, S. Kh Estemirova, A. Kim, K. Yu Shunyaev
Summary: In this study, a composite sorbent based on montmorillonite was synthesized, which exhibited enhanced adsorption efficiency for Cr(VI) ions. It has potential applications in wastewater treatment and the extraction of chromium compounds.
Article
Environmental Sciences
Lixia Jia, Weizhong Wu, Jian Zhang, Haiming Wu
Summary: This study investigated the immobilization of HMs (Cr and Pb) by DOM derived from biochar in nitrate and HMs co-contaminated groundwater in the presence and absence of zero-valent iron (Fe) through batch experiments. The results showed that chemical reduction was the primary way to removal HMs in batch-Fe systems, with different removal efficiencies of Cr and Pb in biochar aqueous phase. Additionally, the observed DOM components with higher aromaticity and humification after adding Cr and Pb indicated the complexation of DOM-HMs through the analysis of adsorption and fluorescence indices.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jialin Liang, Xiaojian Liao, Maoyou Ye, Zhijie Guan, Zhihua Mo, Xian Yang, Shaosong Huang, Shuiyu Sun
Summary: The study compared the activation of peroxymonosulfate (PMS) by zero-valent iron (Fe-0) and zero-valent aluminum (Al-0) for waste activated sludge (WAS) conditioning. Fe-0/PMS treatment showed superior dewaterability of WAS and reduced operational costs compared to Al-0/PMS treatment. The study proposes a novel perspective for selecting an optimal PMS activator in sludge treatment to alleviate environmental risks.
Article
Environmental Sciences
Min Yan, Zhongxian Su, Jiazeng Ding, Tingting Zhu, Yiwen Liu
Summary: This study investigated the mechanism and contribution of microorganisms combined with zero-valent iron (ZVI) in the removal of tetracycline (TC) in wastewater treatment. The results showed that the combination of ZVI and microorganisms improved TC removal by adsorption, chemical reduction, and microbial adsorption. Initially, microorganisms played a major role in the removal process, contributing 80%. However, the inhibitory effect of TC on biological activity and iron encrustation on microbial adsorption sites led to a decrease in TC removal after a certain period of time.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Liang Lv, Hongwei Liu, Qi Li, Yongzhen Wang, Yongfa Zhang, Jun Liu
Summary: In recent years, nanoscale zero-valent iron has been widely used to treat Pb(II)-laden wastewater, while catalytic pyrolysis is an important approach to convert coal into carbon-based functional materials. However, designing a carbon-based composite structure to effectively control nanoscale zero-valent iron oxidation and agglomeration remains a challenge. In this study, a defect-rich lignite-based carbon-coated nano-zero-valent iron structure (AC4) was successfully synthesized, which exhibited a large adsorption capacity due to the synergistic effect between zero-valent iron and defective carbon.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Review
Engineering, Environmental
Weiyu Liang, Gehui Wang, Cheng Peng, Jiaqi Tan, Jiang Wan, Pengfei Sun, Qiannan Li, Xiaowen Ji, Qi Zhang, Yonghong Wu, Wei Zhang
Summary: Nano zero valent iron (nZVI) combined with carbon-based materials shows great potential for heavy metal remediation, but also faces challenges. Environmental factors and long-term efficacy are crucial for the practical application of carbon-based nano zero valent iron (C-nZVI) in remediation processes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiangpeng Tan, Muhammad Shaaban, Jianwei Yang, Yajun Cai, Buyun Wang, Qi-An Peng
Summary: This study used ramie biochar (RBC) to activate nano zero-valent iron (nZVI) for enhanced removal of hexavalent chromium (Cr(VI)). The RBC-nZVI composite showed significantly higher efficiency in Cr(VI) removal compared to RBC or nZVI alone, due to a synergistic effect between RBC600 and nZVI on the reduction reaction of Cr(VI) and increased adsorption sites. This research provides a new approach for utilizing ramie waste and effectively addresses the limitations of nZVI for efficient and rapid Cr(VI) remediation.
Article
Chemistry, Physical
Chunzhen Fan, Suqing Wu, Xiangyong Zheng, Ke Bei, Shengbing He, Min Zhao
Summary: This study applied a zero-valent iron (ZVI) system for the treatment of cottonseed oil (CTO) refining wastewater. The results showed that the ZVI system effectively degraded and mineralized CTO in the wastewater, with enhanced degradation under sunlight irradiation and O2 bubbling. Low concentrations of SO42- and Cl- in the wastewater improved CTO degradation, while high concentrations inhibited the process. However, NO3- hindered CTO degradation. OH and .O-2 were the main active species in the dark, while photogenerated hole (h(+)) played a key role under sunlight irradiation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Environmental Sciences
Wenjing Xue, Jun Li, Xinyu Chen, Hongdou Liu, Siqi Wen, Xiaoyu Shi, Jiaming Guo, Yang Gao, Jian Xu, Yiqun Xu
Summary: This review summarizes the synthesis, application, toxicity assessment, and future challenges of sulfidized nanoscale zero-valent iron (S-nZVI) in the remediation of contaminated soil, sediment, and water. It discusses the properties of S-nZVI synthesized from different methods, the modification protocols for better stability and reactivity, and its applications in removing heavy metals, organic pollutants, antibiotic resistance genes (ARGs), and antibiotic resistant bacteria (ARB). The review highlights the environmental factors affecting the performance of S-nZVI and evaluates its potential in activating persulfate in advanced oxidation processes (AOP). It also describes the toxicity impacts of S-nZVI on environmental microorganisms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)
Article
Engineering, Environmental
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)