To evolve the semiconducting adsorbent Ag+-HTNT, at first rod shaped sodium titanate nanotube (TNT) was hydrothermally obtained using commercial TiO2 taken in NaOH solution in the dark. Ag+ ion was incorporated, into hydrogen titanate nanotube (HTNT) after overnight submersion of TNT in concentrated HCl and characterized by SEM/EDX and was applied to adsorb BR 9 from wastewater at 25 ± 2 °C. Study conducted varying the dosage of adsorbent, concentrations of the solute and time. Within 1.5 h of contact time ~ 85% dye adsorption was secured with the dosage of 2 g/L at 9 mg/L solute concentration at 6.8 ± 0.2 pH. Adsorptivity of the matrix was determined to be 1428.57 mg/g based on the Langmuir isotherm. The study was carried out with a few common, distinct co-existing ions present to find out their effect on adsorption of BR 9 from wastewater if any. Non-spontaneity of adsorption was evaluated from the + ∆G° values, but the + ∆S value suggested the spontaneity. Regeneration of the exhausted material and cost analysis was process was analysed. The adsorptivity of the developed matrix was encountered with the computational model molecular docking study.