Article
Engineering, Environmental
Xuekun Dai, Xishan Zhou, Hanzi Liu, Tao Wang, Yongsheng Zhang, Huicong Zhang, Baomin Sun
Summary: A novel and efficient adsorbent TM-MoSe2 (TM = Fe, Co, Ni) was developed for mercury removal. The doping of Fe/Co/Ni was found to enhance the Hg-0 adsorption capacity of MoSe2, leading to initial Hg-0 removal efficiency of 96.4-100.0%. The adsorption mechanism of HgCl and HgCl2 varied on the TM-MoSe2 (001) surface, with HgCl2 being fixed well through molecular or dissociative adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Energy & Fuels
Xiaoshuo Liu, Rui Wang, Tianfang Huang, Xinze Geng, Xunlei Ding, Yufeng Duan, Shilin Zhao
Summary: The conversion and volatilization of organochlorine to hydrogen chloride (HCl) during coal combustion have been studied. The chemical groups on the coal surface enhance the affinity for HCl, resulting in complex release characteristics during coal combustion.
Article
Chemistry, Physical
Xiaodong Zhang, Yang Yang, Qing Zhu, Mudi Ma, Zeyu Jiang, Xu Liao, Chi He
Summary: The introduction of potassium species enhanced the catalytic activity of MnO2 for low-temperature reactivity and high destruction efficiency in toluene oxidation. The charge transfer balance ability of potassium in MnO2 promoted the activation of oxygen molecules and the formation of bridging bonds, leading to improved catalytic performance for toluene oxidation. Additionally, the presence of Brønsted acid sites facilitated toluene adsorption and the regeneration of hydroxyl species on the catalyst surface, promoting the degradation of intermediates.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Environmental Sciences
Changye Mang, Jun Luo, Pengxu Cao, Xin Zhang, Mingjun Rao, Guanghui Li, Tao Jiang
Summary: Water plays a crucial role in the catalytic oxidation of formaldehyde by influencing the phase structure and morphology of birnessite. The presence of hydroxyl groups accelerates the oxidation reaction of formaldehyde and facilitates the formation of oxygen vacancies. The continuous decomposition of formaldehyde by birnessite is attributed to the favorable effect of water on the catalytic reaction.
Article
Energy & Fuels
Haoyun Liu, Zhen Zhang, Fenghua Shen, Yaming Zhou, Jing Liu, Hongmin Yang
Summary: The study shows that WS2 surface's sulfur defect site exhibits stronger adsorption ability for Hg-0 than the sulfur top site; oxidizing mercury species are easier to be adsorbed by WS2, with higher adsorption energy; the formation of HgS involves a two-step process on S-WS2.
Article
Environmental Sciences
Shenggui Ma, Jundong Guo, Xue Ye, Bowen Tian, Xia Jiang, Tao Gao
Summary: The study found that α-MnO2 has high catalytic activity and the highest sulfur capacity, while MnO2-MnO2 has poor catalytic performance.
Article
Engineering, Environmental
Liming Zhao, Yingju Yang, Jing Liu
Summary: In this study, the role of K-doping in the catalytic reactivity of MnO2 towards the oxidation of formaldehyde was investigated using DFT and microkinetic modeling. The results showed that K-doping improved the stability of the catalyst surface and enhanced the adsorption of formaldehyde and oxygen. Additionally, K-doping reduced the energy barrier of hydrolysis, promoting the generation of hydroxyl groups and facilitating the oxidation of formaldehyde. Overall, K-doping significantly increased the reaction rate of formaldehyde oxidation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Mingming Luo, Chao Liu, Meiling Liu, Shaik Gouse Peera, Tongxiang Liang
Summary: This study systematically investigated the mechanism of CO oxidation on doped graphene catalysts through DFT calculations, finding that FeFe@C6, FeCo@C6, and FeNi@C6 are efficient for CO oxidation. Additionally, heteronuclear dimeric catalysts FeCo@C6 and FeNi@C6 exhibit better catalytic activity and lower energy barriers compared to homonuclear dimeric catalyst FeFe@C6.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Shibo Zhang, Juan Dang, Mercedes Diaz-Somoano, Qingzhu Zhang
Summary: SO2 inhibits the adsorption and oxidation of mercury on the MnO2 surface, posing a challenge to the SO2 resistance of Mn-based catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Chen Manjiao, Zhang Zhengfu, Hu Xinjun, Tian Jianping, Wang Jingsong, Wan Rundong, Zhou Xian, Zhou Xinjun, Shen PeiLun, Liu Dianwen
Summary: The study demonstrates the significant role of water molecules in the oxidation reaction on the surface of arsenopyrite, accelerating the surface oxidation process and resulting in the formation of hydroxylated oxidation products.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Haoyun Liu, Zhen Zhang, Qi Yuan, Yaming Zhou, Jing Liu, Hongmin Yang
Summary: Single-atom catalysts (SACs) have high potential in heterogeneous catalytic processes due to their high atomic utilization efficiency and controllable active sites. This study focuses on the design and investigation of single transition metal atom doped h-BN vacancy catalysts for the cost-effective Hg-0 oxidation by O-2. The results show that Fe/V-B-BN catalyst exhibits excellent affinity to Hg-0 and follows the Eley-Rideal mechanism for the oxidation process. The outcomes demonstrate that Fe/V-B-BN catalyst is a promising candidate for cleaner coalfired power plant operations.
Article
Chemistry, Multidisciplinary
Bunrat Tharat, Lappawat Ngamwongwan, Theerada Seehamongkol, Bunyarat Rungtaweevoranit, Jeeranan Nonkumwong, Suwit Suthirakun, Kajornsak Faungnawakij, Narong Chanlek, Aunyamanee Plucksacholatarn, Weerawan Nimsaila, Chanatkran Prommin, Anchalee Junkaew
Summary: This study investigates the effects of hydroxy and surface oxygen species on the catalytic activity of beta-MnO2 in the oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). The results show that the active surface oxygen and OH species facilitate the catalytic activity of beta-MnO2. The synthesized beta-MnO2 catalyst exhibits high stability and activity during continuous flow oxidation.
Article
Biochemistry & Molecular Biology
Yingjie Zhang, Huijuan Yu, Xueqian Wang, Langlang Wang, Yuancheng Li, Dongpeng Lv, Dan Zhu, Chunmei Tian
Summary: This study investigates the adsorption behavior and mechanistic pathways for the catalytic oxidation of Hg-0 and AsH3 on the CeO2(111) surface using density functional theory calculations. The results suggest that CeO2 can adsorb and remove Hg-0 and AsH3.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Engineering, Environmental
Ting Yao, Jisheng Long, Yufeng Duan, Rajender Gupta, Zhenghe Xu
Summary: In this study, alpha-MnO2 was supported onto silica coated magnetite nanoparticles (MagS-Mn) to investigate the adsorption and oxidation of Hg0 and the influence of SO2 and O2 on Hg0 removal. MagS-Mn exhibited a Hg0 removal capacity of 1122.6 mu g/g at 150 degrees C with the presence of SO2. The adsorption and oxidation efficiencies of Hg0 were 2.4% and 90.6%, respectively. The Hg0 removal capability decreased at higher temperatures.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Weijie Yang, Xuelu Chen, Liugang Chen, Yajun Feng, Chongchong Wu, Xunlei Ding, Zhengyang Gao, Yanfeng Liu, Hao Li
Summary: This study proposes a promising pathway for catalytic Hg-0 oxidation using H2O2 on the surface of single-atom catalysts, offering a new option for effective Hg-0 removal.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
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)