Article
Engineering, Environmental
Hong-Chao Lan, Ya-Ting Zou, Yi-Chao Wang, Ning-Ning Cheng, Wen-Long Xu, Hai-Long Peng, Kuan Huang, Li-Yun Kong, Jun Du
Summary: A new composite sorbent was developed for efficient capture of SO2, showing excellent SO2 adsorption efficiency at extremely low pressures.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Wenwen Huang, Jiacheng Liu, Na Rao, Guozhi Fan, Juntao Yan, Qunpeng Cheng, Guangsen Song
Summary: The study demonstrates that adding surfactant can improve the pore structure of MCM-41, increase the CO2 adsorption capacity, and reduce the diffusion resistance of CO2 in the pore.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Fei Gao, Cailin Ji, Shougui Wang, Weiwen Wang, Jipeng Dong, Changqing Guo, Yuwen Gao, Guanghui Chen
Summary: A new adsorbent based on sterically hindered amine (AMPD) was prepared for efficient CO2 capture. The modified mesoporous silicon MCM-41 showed improved CO2 capture performance, including adsorption capacity, selectivity and cycling stability. The isosteric heat of CO2 adsorption on the MCM-41@AMPD-7 material was also evaluated.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Chaochao Dong, Xiaochuan Deng, Xueqin Guo, Bin Wang, Xiushen Ye, Jie Fan, Chaoliang Zhu, Faying Fan, Binju Qing
Summary: In this study, Al-doped MCM-41 was synthesized using low-cost and non-toxic diatomite, and Cs+ adsorbents were prepared by immobilizing potassium metal ferrocyanide on Al-MCM-41. The adsorbents showed high surface area and excellent Cs+ adsorption capacity, with KZnFC/Al-MCM-41 exhibiting the highest adsorption capacity and fastest equilibrium time. The adsorption mechanism involves exchange of Cs+ and K+, as shown through various spectroscopic techniques. The synthesized adsorbents are efficient for removing Cs+ from radioactive wastewater and mineral resources.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Polymer Science
Mansur Zarrabi
Summary: This study for the first time used Iranian natural pumice as a source of silica to derive MCM-41 adsorbent, which was highly grafted with APTES for anchoring cephalexin (CEX) molecules. The results showed that N-MCM-41 exhibited excellent adsorption capacity and desorption performance, providing guidance for antibiotic adsorption.
Article
Energy & Fuels
Xiaoqing Xu, Peng Wu, Changyong Li, Keyong Zhao, Chiran Wang, Renpan Deng, Jinli Zhang
Summary: In this study, amine-functionalized ZIF8 dispersed in n-heptanol was used to remove SO2, and the effects of ZIF8-A proportion, SO2 concentration, and absorption and desorption temperatures were systematically investigated. The experimental results showed enhanced SO2 removal activity of ZIF8-A in n-heptanol, with increased saturation capacity at higher ZIF8-A proportions and SO2 concentrations. Optimal temperatures for absorption and desorption were found to be 25 and 120 degrees C, respectively. Simulation results indicated that the improved SO2 adsorption performance of ZIF8-A in n-heptanol was due to lower self-diffusion coefficient and higher isosteric heat of SO2 molecules in the system.
Article
Engineering, Environmental
Yangyu Liu, Chunquan Li, Arman Peyravi, Zhiming Sun, Guangxin Zhang, Keivan Rahmani, Shuilin Zheng, Zaher Hashisho
Summary: Mesoporous silica MCM-41 was synthesized using sodium silicate extracted from natural Opoka, showing remarkable adsorption capacity for organic vapors mixture at 20 degrees Celsius and promising applications in VOCs abatement.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Masoud Jahandar Lashaki, Hessam Ziaei-Azad, Abdelhamid Sayari
Summary: By incorporating aluminum into the structure of MCM-41 silica, the amine-functionalized MCM-41 aluminosilicate materials showed higher CO2 uptake and faster adsorption kinetics, as well as superior hydrothermal stability compared to the MCM-41 silica counterparts. The aluminum incorporation increased the stability of the grafted materials in the presence of steam.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Nitin Goyal, Vijaya Kumar Bulasara, Gang Li, Liying Liu
Summary: This study synthesized and modified MCM-41 adsorbent for the effective removal of AZN from aqueous phase. The optimized conditions for maximum removal of AZN were found to be a pH of 6 and a temperature of 313 K. The pseudo-first-order kinetic model provided the best fit, while the adsorption equilibrium isotherm models showed strong correlation with the removal process of AZN.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Applied
Nina Moradpour, Sajjad Sedaghat, Parviz Aberoomand Azar, Kasra Behzad
Summary: In this study, a novel Cs/MCM-41-APS nanocomposite was successfully synthesized and applied as an adsorbent to remove aspirin from water. The optimized conditions for achieving 86% removal efficiency included using 3 g L^-1 adsorbent, an initial aspirin concentration of 30 mg L^-1, pH 4.6, room temperature, and a 55-minute contact time. The adsorption process followed the pseudo-second-order kinetics model, and the Freundlich isotherm model was found to be the best fit for the equilibrium data. Additionally, the adsorbent showed promising potential for regeneration and reuse.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Engineering, Chemical
Raheleh Zafari, Fernanda G. Mendonca, R. Tom Baker, Clemence Fauteux-Lefebvre
Summary: Adsorbents made from amine-functionalized cellulose were studied for SO2 capture, showing a significantly higher adsorption capacity compared to pristine nanocrystalline cellulose. The effects of functionalization time, temperature, and amount of amine were assessed, and the adsorption mechanism for SO2 capture was confirmed. The study also investigated the impact of different operating adsorption temperatures and flow rates on the capture capacity and breakthrough time of SO2.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zeyu Geng, Qin Xie, Zhongjiao Fan, Weining Sun, Wei Zhao, Junhao Zhang, Jianqiu Chen, Yun Xu
Summary: Four tertiary amine-based protic ionic liquids have been designed and tested for SO2 uptake, showing a high capacity for SO2 and a high selectivity for SO2/CO2 separation. The kinetic study demonstrated their efficient and quick absorption of SO2 under ambient pressure. Due to their excellent recyclability and fast absorption process, these PILs are considered as a potential alternative to traditional absorbents in flue gas desulfurization (FGD).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Jie Chen, Yao Yang, Yuanyuan Yao, Zhujian Huang, Qiaoling Xu, Liping He, Beini Gong
Summary: The contamination of antibiotics in the environment has become a serious concern. The development of cost-effective and environmentally friendly adsorbent materials is crucial in addressing this issue. Mesoporous molecular sieve MCM-41 shows significant promise due to its strong adsorption capacity, low cost, and efficient regenerative properties. This study investigated the adsorption behavior of demolded MCM-41 materials for tetracycline, doxycycline, and levofloxacin at different temperatures and pH levels. The results showed that a neutral or weakly acidic pH environment promoted adsorption, while alkaline conditions hindered it. The maximum adsorption capacities were determined for each antibiotic, highlighting the potential of MCM-41 in mitigating antibiotic wastewater contamination.
Article
Biochemistry & Molecular Biology
Yuke Xie, Ziqiao Zhong, Wenhao Wang, Ying Huang, Chuanbin Wu, Xin Pan, Zhengwei Huang
Summary: As a widely studied mesoporous silica nanoparticle in drug delivery systems, MCM-41 possesses unique properties but its applications have not been industrialized due to its interaction with biomolecules, especially proteins. This study investigated the interactions between MCM-41 and proteins using BSA, Lyso, and BHb as model proteins. Different interaction patterns were observed, leading to varying effects on protein structure, MCM-41 surface chemistry, and protein adsorption capability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Wenlin Yu, Qinpeng Dong, Wenbin Yu, Quan Wan, Xiuli Chen
Summary: In this study, MCM-41/Ag2O nanomaterials were successfully synthesized and evaluated as an adsorbent for I- removal from water. The nanomaterials showed strong adsorption capacity for I- and exhibited good selectivity in the presence of high concentrations of competitive anions.
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)