Article
Polymer Science
Cheng Tang, Tao Hu, Chengzhen Du, Ziqin Liao, Wenyan Cheng, Fen Wang, Xiaoli Hu, Kunpeng Song
Summary: A Fe-N conjugated organic polymer (SMP-Fr-Py) was prepared and showed significantly higher Cr(VI) removal efficiency compared to HCP-Fr-Py. The removal reaction followed a pseudo-second-order kinetic model and the efficiency decreased with increasing solution pH and initial Cr(VI) concentration. The direct connection of ferrocene and pyrrole increased the conjugated structure and facilitated electron transfer and transport.
Article
Engineering, Environmental
Wang Huan, Hu Huiping, Peng Qifan
Summary: NH2-CPP, a cyclophosphazene-based amino functionalized hybrid polymer, exhibits excellent positive charged surface and high adsorption capacity for removing Cr(VI) from aqueous solutions. It shows relatively superior removal efficiency towards Cr(VI) under low pH conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Shiyao Li, Rong Cheng, Jiahao Li, Haobo Hou, Yi Wang, Jiaao Chen, Yuwei Xiang, Min Zhou
Summary: This paper investigates the application of co-doped magnetic carbon aerogel microsphere composites in the efficient removal of hexavalent chromium. The results show that the optimal composite exhibits high adsorption capacity and reduction performance. Nitrogen atoms play a positive role in the adsorption system. Additionally, the carbon aerogel encapsulated nanoparticles provide magnetic stability for the separation and reuse of the adsorbents.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Pei Peng, Zhuo Chen, Xiaoming Li, You Wu, Yitian Xia, Abing Duan, Dongbo Wang, Qi Yang
Summary: A Bi2MoO6/carbon quantum dots/Bi2S3 composite material was successfully fabricated and used as a high-efficient photocatalyst for degradation of organic pollutants and reduction of Cr (VI). The carbon quantum dots derived from waste sludge biomass enhanced the photocatalysis activity of the heterojunction. The degradation efficiency of tetracycline hydrochloride reached 92.8% under visible light.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Wei-Dong Xiao, Ling -Ping Xiao, Yi-Hui Lv, Wen-Zheng Yin, Julio Sanchez, Shang-Ru Zhai, Qing-Da An, Run-Cang Sun
Summary: Efficient removal of heavy metal ions and organic pollutants in wastewater is crucial for the healthy development of ecosystems. This study successfully addresses the challenge of simultaneous removal of both types of contaminants by fabricating bifunctional composites derived from nanoscale zero-valent iron coated with lignin-derived carbon.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Jie Wang, Qiuyue Xu, Weiqin Yin, Jianhua Hou, Shengsen Wang, Xiaozhi Wang
Summary: Sulfur-doped MnFe2O4 showed higher adsorption capacity for Cr(VI) and promoted the reduction of Cr(VI) to Cr(III). The sulfur doping improved the Cr(VI) removal ability of the materials.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Shuoqi Ren, Yuchen Wang, Zijian Han, Qiwei Zhang, Chongwei Cui
Summary: A highly efficient absorbent, PDA/MgAl-LDH, was developed in this study by modifying polydopamine film on Mg-Al layered double hydroxide to remove Cr(VI) from wastewater. The study systematically investigated the absorption performance and mechanisms, providing insights into the interaction between PDA and Cr(VI) as well as Cr(III) for potential wastewater treatment applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Wei Mao, Lixun Zhang, Tianye Wang, Yichen Bai, Yuntao Guan
Summary: A visible-light-driven Bi2WO6/CuS p-n heterojunction with high photocatalytic activity was fabricated to simultaneously remove pollutants in a mixed system containing RhB, TCH, and Cr(VI). The presence of dissolved organic matter significantly promoted the removal of TCH and Cr(VI) by accelerating the separation of electrons and holes. The p-n heterojunction formed in Bi2WO6/CuS acted as a bridge to shorten the electron transport and increase the removal efficiencies of both reducing and oxidizing pollutants in wastewater.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2021)
Article
Engineering, Chemical
Jiaming Song, Zhen Meng, Xiaozhi Wang, Geshan Zhang, Changjun Bi, Jianhua Hou
Summary: A nitrogen and sulfur co-doped carbon/Fe3O4 composite material was successfully prepared for the removal of Cr(VI). The addition of Fe3O4 nanoribbons greatly improved the removal efficiency of hexavalent chromium. The adsorption characteristics were analyzed, and the maximum adsorption capacity was reached at pH = 5. The adsorption process followed pseudo-second-order kinetics and was close to monolayer chemisorption.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yefan Qing, Wei Gao, Yantong Long, Yijin Kang, Chen Xu
Summary: In this study, a Ti-based metal-organic framework (MOF) was functionalized by introducing amidoxime groups, resulting in excellent Cr(VI) adsorption performance.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Cheng-zhao Jin, Xin-an Yang, Xiao-min Zhai, Shang-Bing Wang, Wang-bing Zhang
Summary: This paper focuses on the construction of amorphous/crystalline heterojunction using a one-step hydro-thermal method for effective photocatalytic reduction of high-concentration chromium. The introduction of amorphous ZnO transformed the surface structure of Sn3O4, leading to enhanced pollutant adsorption and high removal efficiency of Cr(VI) on Z/S heterojunction.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Hao Zhang, Yuxin Tian, Yanrui Niu, Xiaolong Dong, Hongming Lou, Haifeng Zhou
Summary: Lignin-sulfonate-based biosorbents, specifically lignosulfonate/N-butylaniline (LS-NBA) hollow microspheres, have been successfully fabricated for the removal of hazardous Cr(VI). The LS-NBA showed significant adsorption capacity and proved effective in real industrial wastewater treatment, bringing the residual concentration of Cr(VI) below the recommended limit for drinking water.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Qiang Chen, Bing Wan, Paijin Zhu, Shuxia Xu, Yi Huang
Summary: Pt-doped g-C3N4 photocatalyst showed enhanced photosensitization performance by improving light absorption range and efficiency. The photocatalytic degradation of Rhodamine B was significantly increased from 50 to 90% using Pt-doped g-C3N4. The method has the advantages of simple operation, low cost, and high efficiency for removing dyes in wastewater utilizing sunlight.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Gaoqian Yuan, Kezhuo Li, Jingzhe Zhang, Zhong Huang, Faliang Li, Haijun Zhang, Junkai Wang, Shaowei Zhang, Quanli Jia
Summary: In this study, a sphere-like ZnFe2O4 catalyst was prepared and it was found that aqueous Cr(VI) pollution can be completely removed within a short time by using microwave irradiation. Surface temperature visualization tests and simulations showed that the high surface temperature of ZnFe2O4 catalysts induced by microwave irradiation played a crucial role in the reduction of Cr(VI) to Cr(III). The DFT calculation further clarified the kinetic reaction process and demonstrated that Fe atoms in the ZnFe2O4 catalysts were more significant for the reduction reaction than Zn and O atoms.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Mei Li, Shaoping Kuang, Jiahao Dong, Haoqin Ma, Yan Kang
Summary: In this study, alpha-MnO2 and beta-MnO2 were prepared to remove Cr(VI) from water. It was found that alpha-MnO2 exhibited a higher removal rate of 92% compared to beta-MnO2. The presence of large pores, high surface area, and abundant functional groups in alpha-MnO2 contributed to its superior performance in removing Cr(VI). The findings of this study provide valuable insights into the mechanism of Cr(VI) removal by nano-MnO2.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Debin Zeng, Kai Yang, Changlin Yu, Fanyun Chen, XiaoXiao Li, Zhen Wu, Hong Liu
APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
Article
Chemistry, Physical
Changlin Yu, Debin Zeng, Fanyun Chen, Hongbin Ji, Julan Zeng, Dehao Li, Kai Yang
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Chemistry, Multidisciplinary
Debin Zeng, Xiting Wang, Yuanshuang Liu, Dameng Liu, Zhouyang Zhang, Linfeng Fei, John Robertson, Chunguang Kuai, Yuzheng Guo
Summary: A self-poisoning effect in CO2 photoreduction has been identified, and improvements in reactivity on carbon nitride through phosphorus-doping and nitrogen-vacancy engineering have been observed, resulting in enhanced C2 production but decreased catalyst stability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Changlin Yu, Debin Zeng, Qizhe Fan, Kai Yang, Julan Zeng, Longfong Wei, Junhui Yi, Hongbing Ji
ENVIRONMENTAL SCIENCE-NANO
(2020)
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)