Aqueous suspensions 1 Carboxylic acid groups 1 Coir dust 1 Colloid 1 Colloids 1 Composite materials 1 Control degradation 1 Deionized water 1 Deposition rates 1 Deposition velocities Deposition velocity 1 Dispersed particle 1 Dust 1 Fourier transform infrared spectroscopy 1 Nanostructures 1 Oxide minerals 1 Particle depositions 1 Particle diameters 1 Particle size analysis 1 Polypropylenes 1 Scanning electron microscopy 1 Scanning electron microscopy image 1 Spray dry 1 Spray drying 1 Surface roughness 1 Suspensions (fluids) 1 TiO2 nanoparticles 1 Titanium dioxide 1 Waste treatment 1