Enhanced removal of methylene blue from wastewater by alginate/carboxymethyl cellulose-melamine sponge composite

Zeng, Yang; Tang, Xiangtao; Qin, Yan; Maimaiti, Asiya; Zhou, Xudong; Guo, Yanju; Liu, Xin; Zhang, Wenqing; Gao, Jie; Zhang, Lingfan

doi:10.1016/j.ijbiomac.2023.125280

Cited by 13 publications

(1 citation statement)

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“…We could observe that the residual mass of the aerogel still retained 94% after storing at 90 °C for 3.5 h. Furthermore, in order to evaluate the thermal stability of the aerogel under harsh environment, as shown in TGA curves (Figure F), the mass changes of PVA, TA, TTA-Alg, MFC, and AP 500 T 600 aerogel in wide temperature ranging from 25 to 600 °C were studied. The mass loss of the aerogel could be divided into three stages: before 195 °C, the mass of the aerogel did not decrease significantly, and the main reason for the mass loss was the water evaporation; during 195–385 °C, the aerogel lost large part of mass owing to the removal of oxygen-containing groups; after 385 °C, mass loss was mainly caused by the slow decomposition of the remaining remains. As a consequence, the above experimental results confirmed that the prepared biobased aerogels possessed a satisfactory temperature tolerance.…”

Section: Resultsmentioning

confidence: 99%

Biobased Aerogels Fabricated by the Ice Crystal Method for Smoke Purifying

Sun,

Chai,

Qian

et al. 2024

ACS Appl. Polym. Mater.

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Filters play a crucial role in smoke filtration. However, conventional cigarette filters lack degradability or high filtration capacity. Developing cigarette filters with low cost, degradability, and desirable filtration efficiency is an urgent requirement in the cigarette market. In this study, biobased composite aerogels with hierarchically porous structure for cigarette smoke are fabricated. The prepared aerogels consist of naturally biocompatible materials; the microfibrillated cellulose and poly(vinyl alcohol) endow the composite aerogels with mechanical robustness and flexibility. In addition, tannic acid not only has the effect of trapping toxic chemicals in smoke but also performs an antibacterial function in collaboration with the fabricated TTA-Alg polyelectrolyte. It is believed that the hierarchically porous structure of the biobased aerogels induced by the ice template method facilitates the adequate flow of the smoke in aerogels, resulting in high purification efficiency and a relatively constant pressure drop during the smoke filtration process, which is conducive for smoke purification. The prepared aerogel could efficiently capture toxic chemicals in smoke, including filtering 96.58% of oil smoke, 88.64% of total nonmethane hydrocarbons, and 94.79% of particulate matter, exhibiting higher removal efficiency than commercial cigarette filters. In brief, the designed biobased aerogels possess low cost, environmental friendliness, compressibility, and desirable smoke filtration efficiency, showing a promising application prospect for smoke filtration.

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Section: Resultsmentioning

confidence: 99%