Article
Chemistry, Applied
Yan-Hua Fan, Ya-Xin Li, Wen-Jie Zhu, Yan Bai, Dong-Bin Dang
Summary: In this study, the adsorption performances of four 3D polyoxometalate-based metal-organic frameworks (POMOFs) on organic dyes were systematically studied. The results showed that these compounds exhibited highly sensitive selective adsorption behavior towards the cationic dye methylene blue. The study provides a new idea for the adsorption and separation of cationic dyes in wastewater by constructing materials with a large amount of charge on the surface.
Article
Chemistry, Physical
Qian Liu, Wen-Yong Deng, Lie-Yuan Zhang, Chang-Xiang Liu, Wei-Wei Jie, Rui-Xuan Su, Bin Zhou, Li-Min Lu, Shu-Wu Liu, Xi-Gen Huang
Summary: Bamboo charcoal was impregnated with NaOH and magnetized, leading to increased surface area and improved adsorption and catalytic degradation of methylene blue.
Article
Agricultural Engineering
Jia-Lin Liu, Wei-Cong Qian, Jian-Zhong Guo, Yan Shen, Bing Li
Summary: Fe3O4-PAMH was successfully synthesized and characterized, showing high adsorption capacities for anionic and cationic dyes with potential for cyclic reuse through simple pH management.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yang Zhang, Yanhui Li, Mingzhen Wang, Bing Chen, Yaohui Sun, Kewei Chen, Qiujv Du, Xinxin Pi, Yuqi Wang
Summary: A novel gelatin-based functionalized carbon nanotubes@metal-organic framework (F-CNTs@MOF@Gel) adsorbent was prepared and studied for the adsorption of methylene blue. The new adsorbent was characterized and the effects of various factors on the adsorption process were investigated. The results showed that the adsorbent has a promising application prospect.
Article
Engineering, Environmental
Chengyi Dai, Menghan Zhang, Xinwen Guo, Xiaoxun Ma
Summary: The mesoporous Ni-C-N/Silica aerogel (Ni-C-N/SA) was prepared by impregnating the [Ni(tepa)](2+) complex onto a negatively charged silica aerogel support and subjecting it to suitable thermal treatment. The Ni-C-N/SA exhibited selective adsorption for methylene blue (MB) and showed increased adsorption capacity compared to raw silica aerogel (RSA). This was attributed to the binder effect of [Ni(tepa)](2+), leading to changes in pore volume, pore size distribution, and interaction between cationic dye and Ni-C-N components.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Shadpour Mallakpour, Elham Azadi, Mohammad Dinari
Summary: A novel effective bio adsorbent, Zn-Al LDH@NH2-MIL-125(Ti) hybrid, was produced and used to remove congo red and methylene blue dyes from water matrices. The hybrid showed good adsorption capacity and efforts were made to improve reusability and prevent secondary contamination.
CARBOHYDRATE POLYMERS
(2023)
Article
Environmental Sciences
Rajamanickam Sivakumar, Nae Yoon Lee
Summary: The review introduces the environmental impact of organic dyes and the significant contribution of polysaccharide-based hydrogels to their removal, particularly focusing on MB. It explores various mechanisms involved in the adsorption technique and describes in detail the removal of MB using composite hydrogels incorporating different materials. The review also addresses the current limitations and future prospects of polysaccharide-based composite hydrogel techniques, recognizing their vital role in MB adsorption.
Article
Engineering, Environmental
Abdul Naeem, Tooba Saeed, Murtaza Sayed, Bashir Ahmad, Tahira Mahmood, Muhammad Farooq, Fouzia Perveen
Summary: This study reports the synthesis of Zirconium metal-organic framework and chitosan composite of zirconium metal-organic framework for potential adsorption of methyl orange and methylene blue dyes. The synthesized materials were characterized and showed enhanced adsorption capability. Kinetic models indicated that pore diffusion dominates in the adsorption of methylene blue while film diffusion has a greater involvement in the adsorption of methyl orange. Photocatalytic degradation study showed the significance of pH and H2O2 in the degradation process and the formation of less toxic transformation products.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Multidisciplinary
J. Liu, K. Yu, X. Han, J. Yu, W. Xiang, D. Zhao, B. Chen
Summary: In this work, a cationic metal-organic framework with triangular hydrophobic channels was prepared and used as an efficient adsorbent for the selective adsorption and separation of anionic dyes. Additionally, a flexible and self-supporting mixed matrix membrane was fabricated, which can selectively capture and separate anionic organic dyes from binary dye mixtures.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Anindita Chakraborty, Himadri Acharya
Summary: A CoAl-LDH/Cu-(tpa) MOF nanocomposite with excellent dye adsorption performance was successfully synthesized, following pseudo first order kinetics and Langmuir isotherm model during the adsorption process. The endothermic nature of energy adsorption was demonstrated, along with good regeneration capabilities and potential application in wastewater treatment for selective removal of anionic dyes.
ACS APPLIED NANO MATERIALS
(2021)
Article
Polymer Science
Tianjing Zhang, Siyu Xiao, Kehao Fan, Hua He, Zhiyong Qin
Summary: In this study, a highly efficient green aerogel was prepared for the removal of cationic dyes. The aerogel exhibited high adsorption capacity, selective adsorption, and reusability. The use of polyethylene glycol diglycidyl ether successfully assisted in forming a network structure of porous aerogels.
Article
Biochemistry & Molecular Biology
Tong Gao, Guohao Guan, Xuejun Wang, Tao Lou
Summary: The molecular imprinting technique has been successfully applied to synthesize a nanofibrous membrane for selective adsorption of methylene blue. The membrane showed improved adsorption capacity and selective adsorption towards mixed dye solution.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Engineering, Chemical
Zhiyue Li, Xuerui Liu, Xiao Zhang, Taoyi Zhang, Jing Chen, Quan Li, Yingchun Yu, Xiaoyan Zhao, Yun Wei
Summary: Hydroxyl-carboxyl bifunctional hyper-crosslinked polymers (HCHCP) were synthesized and used as highly effective adsorbents for the removal of methylene blue (MB). The HCHCP exhibited excellent adsorption capacity and selectivity, making it a promising candidate for the removal of cationic dyes.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Cai-Xia Yu, Jing Chen, Yan Zhang, Wen-Bo Song, Xiao-Qiang Li, Feng-Jun Chen, You-Juan Zhang, Dong Liu, Lei-Lei Liu
Summary: The hydrothermal reaction of Zn(NO3)(2)·6H2O with a flexible bipyridyl ligand and 1,3-benzenedicarboxylic acid synthesized a novel metal-organic framework (MOF) that showed high adsorption capacities for anionic dyes in acidic conditions. The adsorbent exhibited excellent selectivity in adsorption and followed pseudo-second-order kinetics, with interactions mainly dominated by electrostatic forces and surface adsorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Caizhen Liang, Qingshan Shi, Jin Feng, Junwei Yao, Hui Huang, Xiaobao Xie
Summary: This study reports the application of an innovative nano-carbon material adsorbent for the removal of dye pollutants. The adsorbent possesses advantageous specific surface area and abundant surface functional groups, leading to efficient adsorption. The adsorption processes follow the pseudo-second order kinetic and Langmuir isothermal models, exhibiting spontaneously endothermic characteristics. Additionally, the adsorbent shows excellent selective capability in different mixed dye systems.
