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Misbah Sultan 《Environmental Chemistry Letters》2017,15(2):347-366
Synthetic organic dyes are extensively used in consumer products from textile to pharmaceuticals. A large amount of organic dyes is ultimately discharged as effluent into water bodies, thus posing a serious threat to environment and life. Therefore, removal of dyes from water bodies is needed. To address this problem, various synthetic and natural materials have been used to adsorb dyes. Here, we review the application of polyurethane for removal of organic dyes. First, we review the application of simple and modified polyurethane as efficient and economic adsorbents for dyes. Secondly, we review the polyurethane-based membranes for separation and adsorption of various dyes. Thirdly, we describe polyurethane composites with improved efficiency of dyes removal. Finally, we review the bioremediation of dyes where polyurethane has been proven as an excellent inert support. 相似文献
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Sana Sadaf Haq Nawaz Bhatti Muhammad Arif Misbah Amin Farva Nazar 《Chemistry and Ecology》2013,29(3):252-264
This paper reports the application of Box-Behnken experimental design to illustrate the adsorption of direct dyes (Indosol Black NF and Indosol Orange RSN) using polyethyleneimine (PEI)-treated peanut husk biomass. The effect of three independent variables (initial dyes concentration, biosorbent dose and pH) was investigated during the study. Maximum biosorption capacity (141 and 98.2 mg/g) of PEI-pretreated biomass was achieved with 200 mg/L initial dye concentration and 0.05 g/50 mL biomass dose for Indosol Black NF and Indosol Orange RSN, respectively. Acidic pH was found to be favourable for maximum dyes removal. Characterisation of biosorbent was carried out through Fourier transform-infrared spectroscopy (FT-IR), scanning electron microscopy, thermogravimetric analysis (TGA) and point of zero charge determination. FT-IR analyses confirmed the involvement of carboxylic and carbonyl groups. The desorption study was also conducted to check out the possibility of regeneration of dyes and adsorbent and it was found that 51.58 and 76.6% of Indosol Black NF and Indosol Orange RSN, respectively, can be desorbed from the loaded biosorbent by using 1 M NaOH solution. The results indicated that PEI-treated peanut husk biomass can be used as an efficient biosorbent for the removal of Indosol Black NF and Indosol Orange RSN dyes from aqueous solutions. 相似文献
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Hassan Syeda Anam Nosheen Misbah Rafaz Nazish Haq Inayatul 《Environment, Development and Sustainability》2021,23(10):15266-15289
Environment, Development and Sustainability - Environmental degradation has put significant consequences at both the national and global levels. Economic development and ecological sustainability... 相似文献
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Zia Jannatun Farhat Shahzada Misbah Aazam Elham S. Riaz Ufana 《Environmental science and pollution research international》2021,28(4):4125-4135
Environmental Science and Pollution Research - Catalytic degradation based on microwave irradiation is an emerging technique which promises prompt and efficient catalytic degradation of organic... 相似文献
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Najibullah Iqbal Javed Nosheen Misbah 《Environmental science and pollution research international》2021,28(31):41780-41793
Environmental Science and Pollution Research - Global warming is one of the most serious environmental problems that the world faces today. Millions of human lives are at risk, hence the subject... 相似文献
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