Ginger Straw Waste-Derived Porous Carbons as Effective Adsorbents toward Methylene Blue

Abstract

In this work, ginger straw waste-derived porous carbons, with high adsorption capacity, high adsorption rate, and good reusability for removing the toxic dye of methylene blue from wastewater, were prepared by a facile method under oxygen-limiting conditions. This study opens a new approach for the utilization of ginger straw waste, and the porous materials can be employed as great potential adsorbents for treating dye wastewater.

Facile Preparation of Porous Carbon Derived from Pomelo Peel for Efficient Adsorption of Methylene Blue

“…FTIR spectrum was used to study the surface organic groups of PPPC. As shown in Figure 3 F, the bands at 3458 and 3315 cm −1 ; 2923 and 2854 cm −1 ; 1869 cm −1 ; 1614 and 1567 cm −1 ; 1153 and 1074 cm −1 ; and 889 and 802 cm −1 , represented –OH, –CH 2 , C=O, C=C, C–O, and C-H groups respectively, which were derived from the carbonization of PP during the carbonization process [ 3 , 20 ]. Based on the above results, it was known that many oxygenated groups existed on the surface of PPPC.…”

“…Organic dye wastewater produced from textile, printing, leather, and paper industries becomes a serious pollution problem once it is discharged into the environment without effective treatment [ 1 ]. Methylene blue (MB) is a commonly used dye in these industries and has potential toxicities for aquatic environments and humans [ 2 , 3 ]. Importantly, MB molecule in wastewater is difficult to decompose under natural conditions [ 4 ].…”

Optimization of Operating Conditions for Electrochemical Decolorization of Methylene Blue with Ti/α-PbO2/β-PbO2 Composite Electrode

“…Figure 5a shows the change in the UV-Vis spectra of MB during the electrochemical decolorization process using Ti/α-PbO 2 /β-PbO 2 electrode. Strong absorption peaks were observed at 292 and 664 nm, which are derived from the absorbance of the major chromophore group of MB [17,19]. The absorbance peak (0.03 mg L −1 ) decreased with the electrochemical decolorization treatment time and disappeared completely after 30 min.…”

“…It is also used as a medicine to treat methemoglobinemia. Common side effects include headache, vomiting, confusion, shortness of breath, hypertension, and so on [17][18][19]. Firstly, we have tried to modify the Ti-based PbO 2 electrodes for the electrochemical remediation of MB wastewater [20].…”

Biosorption: The Removal of Toxic Dyes From Industrial Effluent Using Phytobiomass- A Review

“…One of the crop wastesis ginger straw, wasted in large quantities as a by-product of ginger farming and it is easily available to reuse for various purposes. Zhang et al (2019), suggested that the waste of ginger (Zingiber officinale) straw produced porous carbon (ginger straw waste porous carbon), which is a good adsorbent for removal of methylene blue dye from wastewater. The dispersal of pore size unfolded that the pore sizes of ginger straw waste derived porous carbon, were mainly located at micropore and mesopore regions.…”