scholarly journals Immobilization of a Laccase/2,2’-azino-bis-(3-ethylbenzothiazoline)-6-sulfonic Acid System to Layered Double Hydroxide/Alginate Biohybrid Beads for Biodegradation of Malachite Green Dye

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Juan Huang ◽  
Yun Yang ◽  
Yaokun Wang ◽  
Mingyang Zhang ◽  
Youxun Liu
Keyword(s):  
Layered Double Hydroxide ◽  
Malachite Green ◽  
Sulfonic Acid ◽  
Dye Decolorization ◽  
Potential Toxicity ◽  
Practical Applications ◽  
Malachite Green Dye ◽  
Running Cost ◽  
Green Solution ◽  
Double Hydroxide

The application of laccase-mediator-based catalysis is limited owing to the high cost of laccases and mediators and the potential toxicity of free mediators. Here, a novel biocatalyst (Im-LMS) was fabricated by immobilizing both laccase and a mediator (2,2’-azino-bis-[3-ethylbenzothiazoline]-6-sulfonic acid) on layered double hydroxide/alginate biohybrid beads. The catalytic activity of Im-LMS was evaluated for dye decolorization using malachite green. The decolorization yields of malachite green by Im-LMS and the free laccase-mediator system were 92% within 120 min and 90% within 90 min. Malachite green solution was detoxified completely after biodegradation by Im-LMS. Following eight reuse cycles of Im-LMS for dye treatment, a decolorization yield of 79% was obtained. The activity of Im-LMS was almost completely stable after being stored for 10 days. The recyclability and stability of Im-LMS will be helpful for reducing the running cost and potential toxicity associated with mediators to facilitate practical applications.

Partially amorphous nickel–iron layered double hydroxide nanosheet arrays for robust bifunctional electrocatalysis

2018 ◽  
Vol 6 (33) ◽  
pp. 16121-16129 ◽  
Author(s):  
Junfeng Xie ◽  
Haichao Qu ◽  
Fengcai Lei ◽  
Xu Peng ◽  
Weiwei Liu ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Layered Double Hydroxide ◽  
Fuel Production ◽  
Multiple Targets ◽  
Clean Fuel ◽  
Practical Applications ◽  
Nickel Iron ◽  
Nanosheet Arrays ◽  
Pollution Treatment ◽  
Double Hydroxide

Bifunctional electrocatalysts that can boost energy-related reactions are urgently in demand for pursual of dual and even multiple targets towards practical applications such as energy conversion, clean fuel production and pollution treatment.

Kinetics, isothermal and mechanistic insight into the adsorption of eosin yellow and malachite green from water via tri-metallic layered double hydroxide nanosheets

2022 ◽  
Vol 39 (1) ◽  
pp. 216-226
Author(s):  
Muhammad Altaf Nazir ◽  
Tayyaba Najam ◽  
Muhammad Sohail Bashir ◽  
Muhammad Sufyan Javed ◽  
Muhammad Aswad Bashir ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Malachite Green ◽  
Mechanistic Insight ◽  
Eosin Yellow ◽  
Double Hydroxide ◽  
Insight Into

scholarly journals Functional Layered Double Hydroxide Nanohybrids for Biomedical Imaging

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1404 ◽  
Author(s):  
Jin ◽  
Park
Keyword(s):  
Layered Double Hydroxide ◽  
Imaging Techniques ◽  
Exchange Capacity ◽  
Chemical Compositions ◽  
Practical Applications ◽  
Diagnostic Agents ◽  
Variable Chemical ◽  
Bio Imaging ◽  
Therapy And Diagnosis ◽  
Double Hydroxide

Biomedical investigations using layered double hydroxide (LDH) nanoparticles have attracted tremendous attentions due to their advantages such as biocompatibility, variable-chemical compositions, anion-exchange capacity, host–guest interactions, and crystallization-dissolution characters. Bio-imaging becomes more and more important since it allows theranostics to combine therapy and diagnosis, which is a concept of next-generation medicine. Based on the unique features mentioned above, LDHs create novel opportunities for bio-imaging and simultaneous therapy with LDHs-based nanohybrids. This review aims to explore the recent advances in multifunctional LDH nanohybrids ranging from synthesis to practical applications for various bio-imaging with therapeutic functions. Furthermore, their potential both as diagnostic agents and drug delivery carriers will be discussed with the improvement in noninvasive bio-imaging techniques.

Effective Removal and Mineralization of 8‐Hydroxyquinoline‐5‐sulfonic Acid through a Pressurized Electro‐Fenton‐like Process with Ni−Cu−Al Layered Double Hydroxide

2020 ◽  
Vol 7 (11) ◽  
pp. 2457-2465
Author(s):  
Najwa Hamdi ◽  
Federica Proietto ◽  
Hédi Ben Amor ◽  
Alessandro Galia ◽  
Rosalinda Inguanta ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Sulfonic Acid ◽  
Effective Removal ◽  
Double Hydroxide

scholarly journals Adsorption Study of Malachite Green Removal from Aqueous Solution Using Cu/M3+ (M3+=Al, Cr) Layered Double Hydroxide

2020 ◽  
Vol 10 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Neza Rahayu Palapa ◽  
Risfidian Mohadi ◽  
Addy Rachmat ◽  
Aldes Lesbani
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Malachite Green ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Base Interaction ◽  
Adsorption Study ◽  
Order Kinetic Model ◽  
Endothermic Process ◽  
Double Hydroxide

Layered double hydroxide (LDH) Cu/Al and Cu/Cr had been used as adsorbent of malachite green (MG) in aqueous solution. The properties of Cu/Al and Cu/Cr LDHs were analyzed by X-ray diffraction, surface area analysis (BET) and FTIR spectroscopy. Adsorption study of MG was achieved at pH 9. Adsorption of MG follows the pseudo-second-order kinetic model. Langmuir isotherm was suitable for adsorption of MG on both LDH with a maximum adsorption capacity of 59.52 mg/g. The thermodynamic study indicated that the adsorption process is physisorption, spontaneous, and endothermic process.  Adsorption of MG onto LDHs involve the acid-base interaction between adsorbent and adsorbate.

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