Structural alteration within fly ash-based geopolymers governing the adsorption of Cu2+ from aqueous environment: Effect of alkali activation

N-alkylation briefly constructs tunable multifunctional sensor materials: Multianalyte detection and reversible adsorption

“…The following references appear in the Supplemental information: Abbasi et al., 2019 ; Abuhatab et al., 2020 ; Ansari et al., 2020 ; Bora et al., 2019 ; Chiou et al., 2020 ; Coldur et al., 2020 ; Darmayanti et al., 2019 ; Fang et al., 2020 ; Feng et al., 2020 ; Ge et al., 2020 ; Ghosh et al., 2019 ; He et al., 2021 ; Hosseinjani-Pirdehi et al., 2020 ; Jiang et al., 2020 ; Jigyasa et al., 2020 ; Joseph et al., 2020 ; Kadian and Manik, 2020 ; Ke et al., 2020 ; Krishnan and Suneesh, 2019 ; Landge et al., 2020 ; Li et al., 2020a ; Li et al., 2020b ; Ma et al., 2020a ; Ma et al., 2020b ; Mal et al., 2020 ; Mathivanan et al., 2020 ; Miao, 2019 ; Nan et al., 2020 ; Podasca et al., 2019 ; Qian et al., 2019 ; Qu et al., 2020 ; Rajalakshmi and Palanisami, 2020 ; Ran et al., 2020 ; Roja et al., 2020 ; Sharma et al., 2019 ; Tian et al., 2019 ; Xiao et al., 2020 ; Xiong et al., 2019 ; Xu et al., 2019 ; Zhu et al., 2020 .…”

Preparation of Honeycomb-Structured Activated Carbon–Zeolite Composites from Modified Fly Ash and the Adsorptive Removal of Pb(II)

“…Therefore, adsorbent separation processes have attracted the attention of researchers because of their relatively simple operational processes, low potential for byproduct formation, low cost, and easy regeneration procedures. 12 , 13 Many adsorbents have been synthesized from activated carbon, 14 , 15 biomaterials, 16 , 17 and zeolites. 18 − 20 Among the many adsorbents, zeolite has good adsorption properties due to its high specific surface area.…”

Exceptional Aromatic Distribution in the Conversion of Palm-Oil to Biohydrocarbon Using Zeolite-Based Catalyst

“…Moreover, the intensity of XRD reflections of the final catalysts shows lower crystallinity compared to that of the initial zeolites owing to the amorphous character of the silica binder. Furthermore, the XRD reflections also shifted toward lower 2θ, suggesting the presence of more Si-O bonds [21,22,23], which are likely due to the crystallization of some parts of the silica binder into the zeolite phase. Note that the Si-O has a shorter bond length compared to the Al-O, thus, the dspacing will be constricted, resulting in lower θ or 2θ based on the Bragg equation, nλ = 2d sin θ.…”