Dandan Zhao

Self-Activation of Iron-Loaded Metallurgical Coke during Methane Pyrolysis and Upcycling of the Spent Catalyst for Steelmaking

Dandan Zhao, Qi Tian, Xiaolong Ma, Zichuan Ma

Abstract Methane catalytic pyrolysis for hydrogen production is hindered by rapid catalyst deactivation due to carbon deposition—a long-standing technical bottleneck. This study proposes and experimentally validates an alternative pathway that reinterprets catalyst deactivation not as failure, but as an in situ synthesis …

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Coproduction of Hydrogen and Steelmaking Feedstock via Catalytic Methane Pyrolysis over Apricot Shell Char-Supported Iron Catalysts

Qi Tian, Dandan Zhao, Hongfang Hao, Xiaolong Ma et autres

Abstract This study delves into the technical strategy of coproducing hydrogen and steelmaking feedstock through catalytic methane pyrolysis, with the aim of converting the the carbon byproduct from a disposal challenge into a value-added resource. A bifunctional catalyst, namely, apricot shell char-supported …

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Kaempferia galanga L.-derived nanovesicles for protection against acute inflammation via the NF-κB signaling pathway

Ziyue Li, Dandan Zhao, Ziqiao Li, Meijing Wang et autres

. Transcriptomic analysis further confirmed the regulatory effects of KGNVs on inflammation- and oxidative stress-related genes. Collectively, these findings demonstrate that KGNVs alleviate LPS-induced acute inflammatory injury by suppressing NF-κB/p65-associated inflammatory activation, oxidative stress, mitochondrial dysfunction, and caspase-3-dependent apoptosis. These results highlight …

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In-situ self-assemblied HTO/MXene/PSF hybrid membrane for high efficiency and selective lithium extraction from shale gas wastewater

Yuchun Ren, Dandan Zhao, Fei Zhou, Fu Chen et autres

H2TiO3 (HTO) emerges as a highly promising lithium-ion sieve (LIS) material for selectively and efficiently extracting lithium from liquid-phase systems. However, the practical use of conventional powdered HTO adsorbents is hindered by difficulties in recovery and titanium leaching, which limits their reusability. …

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Protective effect of water-soluble nervonic acid micro-powder coated with chitosan oligosaccharide and silk fibroin on hippocampal neuronal HT22 cells

Xiaojie Xu, Dandan Zhao, Chenglin Li, Hui Ying Yang et autres

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Efficient separation and recovery of V(V) from Cr(VI) in aqueous solution using new task-specific ionic liquid of [C12H25NH3][Cyanex 272]

Xiaohua Jing, Zhumei Sun, Dandan Zhao, Lingling Xia et autres

An environmentally friendly process for efficient separation and recovery of V(V) from aqueous solution containing Cr(VI) was proposed using the new task-specific ionic liquid of [C12H25NH3][Cyanex 272]. The separation factor of V(V) from Cr(VI) was about 1.08 × 103 with the optimum …

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Single-Stage Extraction and Separation of Co2+ from Ni2+ Using Ionic Liquid of [C4H9NH3][Cyanex 272]

Xiaohua Jing, Zhumei Sun, Dandan Zhao, Huimin Sun et autres

The purpose of this study was to optimize the extraction conditions for separating Co2+ from Ni2+ using N-butylamine phosphinate ionic liquid of [C4H9NH3][Cyanex 272]. A Box–Behnken design of response surface methodology was used to analyze the effects of the initial pH, extraction …

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Co-extraction of Mn2+, Co2+, and a part of Ni2+ from sulfuric acid solution containing Li+ using the new ionic liquids

Xiaohua Jing, Zhumei Sun, Dandan Zhao, Xiaoning Tang et autres

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An efficient method for chitin production from crab shells by a natural deep eutectic solvent

Wen-Can Huang, Dandan Zhao, Changhu Xue, Xiangzhao Mao

Crab shells are an important feedstock for chitin production. However, their highly compact structure significantly limits their use for the production of chitin under mild conditions. Here, a green and efficient approach using a natural deep eutectic solvent (NADES) to produce chitin …

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Development and structural analysis of dual-thermo-responsive self-assembled zwitterionic micelles

Dandan Zhao, Robin Rajan, Shin‐ichi Yusa, Masaru Nakada et autres

Zwitterionic polymer-based dual thermoresponsive micelles were synthesized. Structural investigations revealed that they exhibit both liquid–liquid phase separation and coil–globule transition and the size scale of each transition is different.

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Environmentally Friendly Extraction and Recovery of Cobalt from Simulated Solution of Spent Ternary Lithium Batteries Using the Novel Ionic Liquids of [C 8 H 17 NH 2 ][Cyanex 272]

Xiaohua Jing, Zhineng Wu, Dandan Zhao, Shuo Li et autres

An environmentally friendly recycling process of cobalt (Co 2+ ) from simulated solution for spent ternary lithium batteries was demonstrated in this research. The novel task-specific ionic liquids (TSILs) of [C 8 H 17 NH 2 ][Cyanex 272] were synthesized by one-step …

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Two-Step Separation of Chitin from Shrimp Shells Using Citric Acid and Deep Eutectic Solvents with the Assistance of Microwave

Dandan Zhao, Wen‐Can Huang, Na Guo, Shuye Zhang et autres

In this research, a two-step extraction approach was developed for chitin preparation from shrimp shells by utilizing citric acids and deep eutectic solvents (DESs), which effectively removed minerals and proteins. In the first step, minerals of shrimp shells were removed by citric …

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