In the present paper, it was reported FTIR studies on efect of polyethylene glycol polimerization shellac. The shellac waxfree, and solvent ethanol 96%. films were prepared by solvent- evaporation method. concentrations having molecular weight 400 10, 30, 60, 90 w/w %. Three peak intensity bands C= O stretching ester at 1709 cm-1, O-H hydroxyl group 3400 C-H vibration 2942 cm-1 observed related to It found that polymerization slowed down polyethyelene glycol, degree decreased with increasing...

In this study, cellulose and nanofibers (CNF) were extracted prepared from cassava peels (CPs). The method of the extraction was performed by alkali treatment followed a bleaching process. CNF mechanical disruption procedure (homogenization ultrasonication), results compared with common acid hydrolysis procedure. resulting both procedures then analyzed using FTIR, SEM, TEM, XRD, TGA. show that successfully procedures. physical properties produced different; however, they had similar chemical...

Trade-off issue and membrane fouling remain two major issues in the utilization of technology for water treatment due to reduced permeability lifetime. In our study, we employed 3-aminopropyltriethoxysilane modified bentonite (BNTAPS) as an anti-fouling modifier prepare polyvinylidene fluoride (PVDF)-based membranes via phase inversion method. The effects BNTAPS concentration on physical, mechanical, morphological, filtration performance hybrid have been investigated. It was found that...

This research investigates the interplay between public administration, educational socialization on social media, population literacy awareness, and satisfaction in context of services. The primary objective is understanding how these variables are interconnected their collective impact satisfaction. study employs a quantitative approach, collecting data through structured questionnaires from randomly selected sample. Data analysis involves various statistical techniques using Smart PLS,...

Abstract Polymer electrolyte is a crucial component of solid‐state‐lithium‐ion batteries that role both as separators and electrolytes. The host polymer lithium salt selection are for producing solid with optimum characteristics. This research aims to study the effect acetate (LiCH 3 COO) on carboxymethyl cellulose (CMC)‐based LiCH COO‐complexed CMC was prepared using solution casting method various weight percentages COO, is, 0%wt, 10%wt, 20%wt, 30%wt. ionic conductivity analysis conducted...

This study examines the preparation of PVDF hybrid membranes mixed with natural zeolite mordenite, which are functionalized various organosilanes, i.e., 3-aminopropyl-triethoxysilane (APTES), 3-ethylenediaminopropyl-trimethoxysilane (EDAPTMS), and 3-mercapto-propyl-trimethoxysilane (MPTMS) compounds. The addition mordenite-MPTMS increased β fraction on membrane surfaces improved hydrophilicity. shape macropores in PME tends to be round, largest size among other resulting highest porosity....

Abstract This work aimed to prepare solid polymer blend electrolytes based on carboxymethyl cellulose (CMC) and chitosan (CMCh) complexed with lithium acetate (LiCH 3 COO) for lithium‐ion batteries application. The of LiCH COO‐complexed CMC/CMCh (50/50) electrolyte were prepared by using the casting solution technique, where various weight percentages COO mixed into as host polymer. Solid + 30wt% had highest ionic conductivity much 2.24 × 10 −5 S cm −1 among others. degraded at temperature...

Ecorilife.id merupakan salah satu UMKM yang bergerak pada bidang produksi ecoprint. Akan tetapi, terdapat permasalahan prioritas dari mitra, yaitu kualitas warna kain ecoprint tidak stabil, meliputi pewarnaan dasar gelap dan terang, pengaruh teknis pewarnaan, penggunaan bahan-bahan pewarna alam. Solusi diharapkan mampu menyelesaikan tersebut dilakukan melalui pendampingan proses Ecorilife.id. Kegiatan dengan melakukan optimasi tahap mordanting menggunaan tawas (Al2(SO4)3), natrium asetat...

<p>Andisol, karbon aktif, dan zeolit memiliki luas permukaan, porositas, kapasitas tukar ion yang efektif dalam menyerap kontaminan air. Penelitian ini bertujuan untuk mempelajari pembuatan adsorben berbasis andisol/zeolite/active carbon dilanjutkan kinerja adsorpsi serta parameter kinetika adsorpsinya penjernihan air gambut. Tanah andisol diaktivasi dengan larutan NaOH 3 M komposisi tanah andisol, zeolit, aktif divariasikan perbandingan berat 100:0:0; 0:100:0; 0:0:100; 50:25:25;...

Strontium titanate (SrTiO3) refers to a perovskite structure compound reported have photocatalyst properties. It is well-known that modifying the particle morphology found be capable of enhancing photocatalytic activity as it can increase reaction sites on solid surface. Molten salt synthesis one methods produce homogeneous size well unique morphology. One parameters determining product obtained using molten method type used. In this study, SrTi0.95Fe0.05O3 was synthesized by NaCl, KCl, and...

This research studied the impact of silanized clay modification on performance and antifouling Poly(vinylidene fluoride) (PVDF) membrane toward humic acid methylene blue filtration. Clay was carried out by using 3-aminopropyltriethoxysilane (APS) to produce modified (Clay-APS). Hybrid membranes were prepared phase inversion for characterized measuring surface hydrophilicity, water flux, rejection, properties. Clay-APS increased hybrid as indicated increasing β fraction decreasing contact...

Abstract As a key component for the future high‐safety lithium batteries, solid polymer electrolyte (SPE) is gaining an attractive momentum toward large‐scale production due to their remarkable compatibility and processability with electrodes. Further, excellent performance can be improved using potential use of plasticizers. A deep eutectic solvent (DES) synthesized from choline chloride (ChCl) citric acid monohydrate (CAM) demonstrates promising plasticizer design good SPE membranes along...

The method of Ti/TiO2-NiO photoelectrode prepared by using sol-gel continued calcination process was introduced. TiO2-NiO film observed with XRD and TEM. anatase-rutile TiO2 mainly on the composite surface electrode. In addition to NiO, also formed NiTiO3 that increased increasing temperature. Photoelectrocatalytic degradation Rhodamine B (RB) this electrode investigated, anodic potential pH were optimized. RB investigated under different conditions, it showed photoelectrocatalytic could...

The effect of polyethylene glycol (PEG) having molecular weight 400 and 600 on stability shellac waxfree prepared by solvent-evaporation method was reported in the present paper. tested life under heat at 125 °C for 10,30,90, 180 minutes. It found that decreased with heating time °C. PEG400 gave most stable 30 minutes heating, whereas 90 above PEG600 as shown insoluble solid test FTIR. WVTR showed water vapour barrier properties PEG600/shellac beter than PEG400/shellac system.

Abstract This research aimed to modify the Nias’ cacao pod husk cellulose by using Microwave‐assisted Organic Synthesis (MAOS) method produce carboxymethyl and its application as lithium‐ion batteries’ biopolymer electrolyte membrane. There were two main stages of modification i. e. alkalization carboxymethylation process (etherification stage). Lithium‐ion membrane was fabricated through casting solution technique, where blend Methylcellulose/Carboxymethyl (MC/CMC) (80/20) (w/w) complexed...

<p>Tahu merupakan produk makanan yang paling banyak dikonsumsi oleh masyarakat Indonesia. Produksi tahu di Indonesia masih menggunakan metode konvensional dengan limbah dihasilkan belum dimanfaatkan secara optimal. Limbah mengandung senyawa organik pH rendah dan salah satu penyumbang polutan pada lingkungan perairan apabila tidak dilakukan proses pengolahan terlebih dahulu sebelum dibuang ke lingkungan. Pengolahan dapat beberapa metode, seperti penambahan bakteri mikroorganisme...

Abstract Cellulose and its derivatives are important industrial raw materials for their advantages, including abundance, biodegradable, environmentally friendly, biocompatible, good mechanical thermal properties. This study aims to isolate modify cellulose from corn husk waste of Puncak‐Bogor, Indonesia improving the characteristics usability cellulose. The was isolated with delignification bleaching process, by using sodium hydroxide (NaOH) hydrogen peroxide (H 2 O ), respectively....

Ilmenite is an economically important and interesting mineral.It found as a by-product of tin mining in Bangka Indonesia.This mineral can be used the source making titanium metal, dioxide (TiO2) pigment material for dye sensitized solar cell.The aim this research to investigate possibility using ilmenite obtain TiO2 pigments cell grade.The main feature process use Fe 0 reducing agent reduces iron value acid leachingable form.In order high grade TiO2, was oxidized leached with hydrochloric...

Industrialization plays important role in the economy of developing countries, including increasing community welfare. However, presence poorly industries waste disposal system has negative impact to environment. Therefore, it is necessary overcome this problem with low-cost technology, called adsorption. In research, silylated-montmorillonite (sMMt) been successfully prepared as supporting material for adsorption methylene blue by chitosan. The sMMt was characterized FTIR, XRD, and...

Polyvinylideneflouride (PVDF) is a good polymeric material for preparing ultrafiltration and microfiltration membranes due to its high mechanical properties chemical resistance. The objective of this work study the effects PVDF concentration on membrane such as strength, permeability water permselectivity T-500 T-2000 dextran solutions. These were also characterized by contact angle determination morphology was observed scanning electron microscopy (SEM). From experimental data, it can be...