Article
Environmental Sciences
Nahid Hajipour, Mohammad Ghorbanpour, Majid Safajou-jahankhanemlou
Summary: A new adsorbent was synthesized using ion-exchange, which showed high adsorption rate for methyl orange dye and agreed with pseudo-second-order model and Langmuir equation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Nan Dai, Shuang Yi, Xiaotian Zhang, Li Feng, Hui Ding, Dan Song, Xiaoying Liu, Jinsong Rao, Yuxin Zhang
Summary: A typical adsorption modification method was used to load ferrous ions onto the Laponite@diatomite composite, creating a catalyst with good photo-Fenton performance. The study found that the catalyst can effectively degrade cationic dyes under optimal reaction conditions, and exhibits structural stability and reusability.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Wenxiu Huang, Huijuan Shao, Mengzhen Song, Zongzheng Yang, Guangbi Li, Xiaoyuan Liao
Summary: This study reports an effective strategy of coating Fe-MOF surface with re-crystallization PDI to enhance stability under acidic conditions and improve catalytic activity through the formation of heterojunction structure. The Fe-MOF@PDI catalysts show increased acid resistance and better activity for phenol removal, making them suitable for acidic wastewater treatment applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yuhang Li, Yingying Li, Jinyang Lv, Zhenbo Zhao, Guoying Sun
Summary: In this study, bentonite supported by Fe, Al, and Ce was used as a catalyst for the heterogeneous Fenton method to degrade methyl orange (MO). The results showed that under the optimal reaction conditions, the decolorization rate of MO reached 96.95%.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Environmental Sciences
Xu Liu, Hui-Lai Liu, Kang-Ping Cui, Zheng-Liang Dai, Bei Wang, Xing Chen
Summary: In this study, heterogeneous photo-Fenton catalysts were prepared using sludge generated in dyeing wastewater through a simple pyrolysis method. FeCN-300 showed the highest degradation efficiency and stability, indicating its great potential for practical applications.
Article
Polymer Science
Paulina Haller, Ignacio Machado, Julia Torres, Agustina Vila, Nicolas Veiga
Summary: This study aimed to immobilize Fe(III) complexes in molecularly imprinted polymers to produce efficient Fenton-like heterogeneous catalysts for the green oxidative degradation of the methyl orange dye pollutant. Fe(III)-BMPA and Fe(III)-NTP were identified as the best candidates, achieving over 70% MO degradation in 3 hours. The resulting ion-imprinted polymers showed potential as cheap and robust solid matrices for effluent treatment systems.
Article
Chemistry, Multidisciplinary
Modestas Vainoris, Aliona Nicolenco, Natalia Tsyntsaru, Elizabeth Podlaha-Murphy, Francisco Alcaide, Henrikas Cesiulis
Summary: The textile industry is a major contributor to environmental pollution in many countries, particularly through the discharge of untreated textile dyes into water. This study investigated the use of Fe/Cu catalysts in the heterogeneous Fenton's reaction for degrading high concentrations of methyl orange dye in water. The results show that both the surface area and catalyst loading play a significant role in the effective degradation of the dye. The experimental findings suggest that a solution containing up to 100 mg/L of methyl orange can be successfully decolorized within 90 s at 50 degrees C using porous Fe/Cu catalysts, surpassing current state-of-the-art performance.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Zirun Wang, Yan Li, Xiaoyun Xie, Zhaowei Wang
Summary: The novel composite of MnFe2O4@CPB demonstrated excellent adsorption and photo-catalytic degradation performance for MO removal, attributed to hydrogen bonding and pi-pi interactions between MO and MnFe2O4@CPB. The abundant surface functional groups of CPB facilitated the generation of hydroxyl radicals under H2O2, enabling MnFe2O4@CPB to maintain great removal performance in visible LED light/H2O2 system. The redox catalytic cycles of Fe (II)/Fe (III) and Mn (III)/Mn (II) were realized under visible LED light, showing promising potential in wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Environmental Sciences
Ganesan Sriram, Akhilesh Bendre, Tariq Altalhi, Ho-Young Jung, Gurumurthy Hegde, Mahaveer Kurkuri
Summary: In this study, low-cost diatomite and bentonite were modified with Ni-Fe layered double hydroxide for the removal of methyl orange dye from water. The modified adsorbents showed significantly improved removal efficiency, high selectivity towards anionic dyes, and reusability for multiple cycles. These designed adsorbents are effective for dye removal from water and may be useful for dye-based wastewater treatment.
Article
Materials Science, Multidisciplinary
Yiyang Liu, Ting Feng, Shanfu Lu, Haining Wang, Yan Xiang
Summary: Phosphotungstic acid demonstrates high stability, electrochemical activity, and low permeability as a liquid fuel for DLFCs. Its application effectively addresses the issues of high cost of anode catalysts and fuel permeation loss in traditional DLFCs.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Negin Iranparast Poshtiri, Ahmad Dadvand Koohi, Azadeh Ebrahimian Pirbazari, Fatemeh Esmaeili Khalil Saraei
Summary: In this study, magnetite fish scales and tea waste were used as adsorbents for Cu(II) cations and then applied as photo-Fenton catalysts to degrade methyl orange. The effects of different factors on the degradation efficiency were investigated and the catalytic action was attributed to the formation of hydroxyl radicals. The results showed that Cu-MFS and Cu-MTW exhibited high degradation efficiency and good stability.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Xin Zhao, Yusen Su, Andy Berbille, Zhong Lin Wang, Wei Tang
Summary: It has been found that dielectric films modified by inductively coupled plasma etching with argon show higher reactivity and degradation efficiency in contact-electro-catalysis process. The contact angle and specific surface area of the films are non-linearly affected by the etching time. This study suggests that film-based contact-electro-catalysis has potential for scalable applications.
Review
Engineering, Environmental
Chunyan Du, Yin Zhang, Zhuo Zhang, Lu Zhou, Guanlong Yu, Xiaofeng Wen, Tianying Chi, Guoliang Wang, Yihai Su, Fangfang Deng, Yinchu Lv, Hao Zhu
Summary: Organic pollutants have caused irreversible damage to ecosystems worldwide. Fe-MOFs, as a promising catalyst, have excellent performance in the photo-Fenton process and can be used for the treatment of organic pollutants in water.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Guangtao Wei, Yanjuan Yang, Yunshang Li, Linye Zhang, Zhongmin Li, Runlin Mo
Summary: The study focused on activating BiFe/Bent composite through mechanical activation, leading to improved catalytic activity and changes in physicochemical properties. The main reasons for enhanced catalytic activity of the activated composite were attributed to changes in microstructure. Mechanical activation was identified as a strategy to promote catalytic efficiency of the composite material.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Ali Boukhemkhem, Samir Hameurlaine, Carmen B. Molina, Carolina Belver, Jorge Bedia, Fathi Chouikh, Nabile Mahamdioua, Khadidja Amouri, Roumaissa Bechtella
Summary: A low-cost catalyst was prepared by ion exchange and calcination, using natural Maghnia sodic bentonite as the precursor. This catalyst showed high catalytic activity in the removal of methyl orange dye by heterogeneous Fenton oxidation. The clay structure was preserved with increased iron content, and the specific surface area increased after the ion exchange treatment.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2023)
